Vertebrates & Invertebrates

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Dienekes
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275277
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Vertebrates & Invertebrates
Updated:
2014-05-25 14:02:02
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Biology Invertegrates vertebrates
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Biology
Description:
Organisms without backbones include most of the diversity of animal life. These organisms use various means to support their bodies, from simple fluid pressure to hard exoskeletons of chitin.
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  1. Well-accepted hypothesis that animals evolved from a colonial protist.
    Colonial theory of animal origins
  2. Predatory mollusk with a closed circulatory system; moves by jet propulsion.
    Cephalopods
  3. Stiff rod of connective tissue that runs the length of the body in chordate larvae or embryos.
    Notochord
  4. Mammal in which young are nourished within the mother's body by way of a placenta.
    Placental mammals
  5. Of some vertebrates, body opening that releases urinary and digestive waste, and functions in reproduction.
    Cloaca
  6. Preadult stage in some animal life cycles.
    Larva
  7. Having parts arranged around a central axis, like spokes around a wheel.
    Radial symmetry
  8. Modern humans; evolved in Africa, then expanded their range worldwide.
    Homo sapiens
  9. Tubular, typically sessile, cnidarian body form.
    Polyp
  10. One or more types of cells that are organized in a specific pattern and that carry out a particular task.
    Tissue
  11. Animal that makes both eggs and sperm.
    Hermaphrodite
  12. Saclike organ inside which blood exchanges gases with the air.
    Lung
  13. Informal name for a lineage of chimpanzee-sized hominins that lived in Africa between 4 million and 1.2 million years ago.
    Australopiths
  14. Egg-laying mammal.
    Monotremes
  15. Animal that gains heat from the environment; commonly called “cold-blooded.”
    Ectotherms
  16. Skirtlike extension of tissue in mollusks; covers the mantle cavity and secretes the shell in species that have a shell.
    Mantle
  17. Bell-shaped, free-swimming cnidarian body form.
    Medusa
  18. Mollusk with a hinged two-part shell.
    Bivalves
  19. Neanderthals. Closest extinct relatives of modern humans; had large brain, stocky body.
    Homo neanderthalensis
  20. Internal skeleton.
    Endoskeleton
  21. Habitually walking upright.
    Bipedalism
  22. Animal without a backbone.
    Invertebrates
  23. Fish that has a skeleton of cartilage, but no jaws or paired fins; for example, a lamprey.
    Jawless fishes
  24. Segmented worm with a coelom, complete digestive system, and closed circulatory system.
    Annelids
  25. Vertebrate with four limbs.
    Tetrapods
  26. Hard, flattened elements that cover the skin of reptiles and some fishes.
    Scales
  27. Dramatic remodeling of body form during the transition from larva to adult.
    Metamorphosis
  28. Bilaterally symmetrical invertebrate with organs but no body cavity; for example, a planarian or tapeworm.
    Flatworms
  29. Aquatic invertebrate that has no tissues or organs and filters food from the water.
    Sponges
  30. Of some arthropods, sensory structure on the head that detects touch and odors.
    Antennae
  31. Animal phylum characterized by a notochord, dorsal nerve cord, pharyngeal gill slits, and a tail that extends beyond the anus. Includes invertebrate and vertebrate groups.
    Chordates
  32. Amniote subgroup that includes lizards, snakes, turtles, crocodilians, and birds.
    Reptiles
  33. Earliest named human species.
    Homo habilis
  34. A eukaryotic heterotroph that is made up of unwalled cells and develops through a series of stages. Most ingest food, reproduce sexually, and move.
    Animals
  35. Tubular gut.
    Complete digestive tract
  36. Invertebrate with a reduced coelom and a mantle.
    Mollusks
  37. Bony fish with fins supported by thin rays derived from skin.
    Ray-finned fishes
  38. Unsegmented worm with a pseudocoelom and a cuticle that is molted as the animal grows.
    Roundworms
  39. Egg with four membranes that allows an embryo to develop away from water.
    Amniote eggs
  40. External skeleton.
    Exoskeleton
  41. Humans and extinct humanlike species.
    Hominins
  42. Invertebrate chordates that have a fishlike shape and retain their defining chordate traits into adulthood.
    Lancelets
  43. Fish that has jaws, paired fins, and a skeleton made of cartilage; for example, a shark.
    Cartilaginous fishes
  44. Mollusk that moves about on its enlarged foot.
    Gastropods
  45. Bony fish with bony supports in its fins.
    Lobe-finned fishes
  46. Jawed fish with a skeleton composed mainly of bone.
    Bony fishes
  47. Monkeys, apes, and humans.
    Anthropoids
  48. Vertebrate that nourishes its young with milk from mammary glands.
    Mammals
  49. Animal that produces its own heat; commonly called “warm-blooded.”
    Endotherms
  50. A body cavity completely lined by tissue derived from mesoderm.
    Coelom
  51. Human species that dispersed out of Africa.
    Homo erectus
  52. Vertebrate that produces amniote eggs; a reptile, bird, or mammal.
    Amniotes
  53. Animal with a backbone.
    Vertebrates
  54. Having right and left halves with similar parts, and a front and back that differ.
    Bilateral symmetry
  55. Invertebrate with jointed legs and a hardened exoskeleton that is periodically molted.
    Arthropods
  56. Land-dwelling arthropods with a pair of antennae, three pairs of legs, and—in the most diverse groups—wings.
    Insects
  57. Land-dwelling arthropods with four pairs of walking legs and no antennae; for example, a spider, scorpion, or tick.
    Arachnids
  58. Mammalian group with grasping hands; includes lemurs, tarsiers, monkeys, apes, and humans.
    Primates
  59. Mostly marine arthropods with two pairs of antennae; for example, a shrimp, crab, lobster, or barnacle.
    Crustaceans
  60. Members of the genus Homo.
    Humans
  61. Aquatic vertebrate of the oldest and most diverse vertebrate group.
    Fishes
  62. Tonguelike organ of many mollusks.
    Radula
  63. Organ of the vertebrate urinary system that filters blood and adjusts its composition.
    Kidneys
  64. Backbone.
    Vertebral column
  65. Invertebrate chordates that lose their defining chordate traits during the transition to adulthood.
    Tunicates
  66. Saclike gut.
    Gastrovascular cavity
  67. Modern amniote with feathers.
    Birds
  68. Tetrapod with a three-chambered heart and scaleless skin that typically develops in water, then lives on land as a carnivore with lungs.
    Amphibians
  69. Eye that consists of many individual units, each with its own lens.
    Compound eyes
  70. Mammal in which young complete development in a pouch on the mother's body.
    Marsupials
  71. Of echinoderms, a system of fluidfilled tubes and tube feet that function in locomotion.
    Water vascular system
  72. Invertebrates with a water–vascular system and an endoskeleton made of hardened plates and spines.
    Echinoderms
  73. Radially symmetrical invertebrate with two tissue layers; uses tentacles with stinging cells to capture food.
    Cnidarians
  74. A change causes a response that reverses the change.
    Negative feedback
  75. Capable of developing into any type of cell in a multicelled body.
    Pluripotent
  76. Fluid connective tissue with cells that form inside bones.
    Blood
  77. Involuntary muscle that lines blood vessels and hollow organs; not striated.
    Smooth muscle tissue
  78. A collection of one or more specific cell types that are organized in a way that suits them to a task.
    Tissue
  79. Striated, involuntary muscle of the heart wall.
    Cardiac muscle tissue
  80. Connective tissue with cells surrounded by a rubbery matrix of their own secretions.
    Cartilage
  81. Deep layer of skin that consists of connective tissue with nerves and blood vessels running through it.
    Dermis
  82. Ductless gland that secretes hormones into a body fluid.
    Endocrine glands
  83. Gland that secretes milk, sweat, saliva, or some other substance through a duct.
    Exocrine glands
  84. Main type of cell in nervous tissue; transmits electrical signals along its plasma membrane and communicates with other cells through chemical messages.
    Neuron
  85. Main cell type in soft connective tissue; secretes collagen and other components of extracellular matrix.
    Fibroblasts
  86. Animal tissue composed of neurons and supporting cells; detects stimuli and controls responses to them.
    Nervous tissue
  87. Animal tissue with an extensive extracellular matrix; provides structural and functional support.
    Connective tissues
  88. Structural unit that is composed of two or more tissues and adapted to carry out a particular task.
    Organ
  89. Process of maintaining favorable conditions inside the body.
    Homeostasis
  90. A cell that can divide and create more stem cells or differentiate to become a specialized cell type.
    Stem cells
  91. Sheetlike animal tissue that covers outer body surfaces and lines internal tubes and cavities.
    Epithelial tissue
  92. Connective tissue with relatively few fibroblasts and fibers scattered in its matrix.
    Loose connective tissue
  93. Definition:
    Connective tissue with cells surrounded by a mineral-hardened matrix of their own secretions.
    Bone tissue
  94. Connective tissue with fat-storing cells.
    Adipose tissue
  95. Organs that interact closely in some task.
    Organ systems
  96. Striated, voluntary muscle that interacts with bone to move body parts.
    Skeletal muscle tissue
  97. Connective tissue with many fibroblasts and fibers in a random or a regular arrangement.
    Dense connective tissue
  98. Outermost, epithelial skin layer.
    Epidermis
  99. Embryonic stem cells could not be used to make

    A. Blood cells.
    B. Skin cells.
    C. Cardiac muscle cells.
    D. Embryonic stem cells can make any of these.
    E. Nerve cells.
    D. Embryonic stem cells can make any of these.
    (this multiple choice question has been scrambled)
  100. Which of the following is not a potential risk of using embryonic stem cells?

    A. They will form tumors due to unlimited divisions.
    B. They will function in the new body.
    C. All these are risks.
    D. They will challenge the host immune system.
    E. They will fail to form normal structural attachments.
    B. They will function in the new body.
    (this multiple choice question has been scrambled)
  101. Which of the following is the lowest level of organization?

    A. Organ
    B. Organism
    C. Organ system
    D. Tissue
    E. Cell
    E. Cell
    (this multiple choice question has been scrambled)
  102. Which tissue is responsible for moving the body and its parts?

    A. Epithelial
    B. Muscular
    C. Nervous
    D. Connective
    E. None of these
    B. Muscular
    (this multiple choice question has been scrambled)
  103. The maintenance of favorable internal conditions is called

    A. Homeostasis
    B. Temperature regulation
    C. Acid-base balance
    D. Osmotic regulation
    E. Oxygen regulation
    A. Homeostasis
    (this multiple choice question has been scrambled)
  104. Which of the following is not true of a simple squamous epithelium?

    A. The cells allow diffusion across them.
    B. It lines the heart.
    C. The cells are tall.
    D. It lines blood vessels.
    E. It is found in the lining of the lungs.
    C. The cells are tall.

    In anatomy, squamous epithelium (from Latin squama, "scale") is an epithelium characterised by its most superficial layer consisting of flat, scale-like cells called squamous epithelial cells. Epithelium may be composed of one layer of these cells, in which case it is referred to as simple squamous epithelium, or it may possess multiple layers, referred to then as stratified squamous epithelium. Both types perform differing functions, ranging from nutrient exchange to protection
    (this multiple choice question has been scrambled)
  105. Which of the following is not an example of a connective tissue?

    A. All these are connective tissues.
    B. Bone.
    C. Cartilage.
    D. Blood.
    E. Adipose.
    A. All these are connective tissues.
    (this multiple choice question has been scrambled)
  106. Cardiac muscle is

    A. Striated and involuntary
    B. Involuntary and not striated
    C. Voluntary and not striated
    D. None of these
    E. Striated and voluntary
    A. Striated and involuntary

    Striated muscle is muscle tissue in which the contractile fibrils in the cells are aligned in parallel bundles, so that their different regions form stripes visible in a microscope.

    Muscles of this type are usually attached to the skeleton by tendons and are under voluntary control.
    (this multiple choice question has been scrambled)
  107. Glands are found only in

    A. Connective tissue
    B. Epithelial tissue
    C. Muscular tissue
    D. Connective and epithelial tissue
    E. Nervous tissue
    B. Epithelial tissue

    Epithelial tissue covers the whole surface of the body. It is made up of cells closely packed and ranged in one or more layers.
    (this multiple choice question has been scrambled)
  108. Neurons communicate with

    A. Other neurons
    B. Glands
    C. Muscles, other neurons, and glands
    D. Muscles and glands
    E. Muscles
    C. Muscles, other neurons, and glands
    (this multiple choice question has been scrambled)
  109. The brain is found in the

    A. Cranial cavity
    B. Abdominal cavity
    C. Spinal cavity
    D. Pelvic cavity
    E. Thoracic cavity
    A. Cranial cavity
    (this multiple choice question has been scrambled)
  110. Which of the following is not found in the dermis?

    A. Stratified squamous epithelium
    B. Hair follicles
    C. Oil glands
    D. Sweat glands
    E. Smooth muscle
    A. Stratified squamous epithelium

    A stratified squamous epithelium consists of squamous (flattened) epithelial cells arranged in layers upon a basal membrane.

    Only one layer is in contact with the basement membrane; the other layers adhere to one another to maintain structural integrity.
    (this multiple choice question has been scrambled)
  111. Which system is responsible for gas exchange with the atmosphere?

    A. Lymphatic system
    B. Urinary system
    C. Respiratory system
    D. Digestive system
    E. Reproductive system
    C. Respiratory system
    (this multiple choice question has been scrambled)
  112. Which of the following is not a role of the integumentary system?

    A. Maintain solute composition of internal fluids.
    B. Keep pathogens out of the body.
    C. Protect the body from dehydration.
    D. Excrete wastes.
    E. Control temperature.
    A. Maintain solute composition of internal fluids.

    The integumentary system is the organ system that protects the body from various kinds of damage, such as loss of water or abrasion from outside. The system comprises the skin and its appendages (including hair, scales, feathers, hooves, and nails).
    (this multiple choice question has been scrambled)
  113. Which of the following is not a derivative of the integumentary system?

    A. Hooves.
    B. Quills.
    C. Nails.
    D. Hair.
    E. All these are derivatives of the integumentary system.
    E. All these are derivatives of the integumentary system.

    The integumentary system is the organ system that protects the body from various kinds of damage, such as loss of water or abrasion from outside. The system comprises the skin and its appendages (including hair, scales, feathers, hooves, and nails).
    (this multiple choice question has been scrambled)
  114. Homeostasis requires interaction between all of the following, except

    A. Brain.
    B. All these interact in homeostasis.
    C. Sensory receptors.
    D. Glands.
    E. Muscles.
    B. All these interact in homeostasis.

    Homeostasis: the tendency toward a relatively stable equilibrium between interdependent elements, especially as maintained by physiological processes.
    (this multiple choice question has been scrambled)
  115. Which of the following is not a response designed to lower body temperature?

    A. Hormonal changes to induce sluggishness
    B. Faster breathing
    C. Increased sweating
    D. Decreased blood flow to the skin
    E. Deeper breathing
    D. Decreased blood flow to the skin
    (this multiple choice question has been scrambled)
  116. Which of the following external precautions does not help in avoiding hyperthermia?

    A. Wear dark colors.
    B. Wear a hat.
    C. Drink plenty of water.
    D. Avoid direct sunlight.
    E. Minimize excessive exercise.
    A. Wear dark colors.
    (this multiple choice question has been scrambled)
  117. The ideal source of replacement cells would be

    A. Cells of an individual unrelated to the patient
    B. The cells of a patient's offspring
    C. The cells of a patient's parents
    D. The cells of a patient's siblings
    E. The patient's own cells
    E. The patient's own cells
    (this multiple choice question has been scrambled)
  118. Researchers were able to recreate cells with Parkinson's disease by making what type of cell pluripotent?

    A. Connective tissue cells
    B. Neurons
    C. Skin cells
    D. Muscle cells
    E. Bone cells
    C. Skin cells

    Pluripotent, embryonic stem cells originate as inner cell mass (ICM) cells within a blastocyst. These stem cells can become any tissue in the body, excluding a placenta.

    Blastocyst: a mammalian blastula in which some differentiation of cells has occurred.

    Blastula: an animal embryo at the early stage of development when it is a hollow ball of cells.
    (this multiple choice question has been scrambled)
  119. Tissues that are sheetlike with one free surface.

    A. Nervous
    B. Connective
    C. Muscle
    D. Epithelial
    D. Epithelial

    Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the cavities and surfaces of structures throughout the body, and also form many glands. Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport and detection of sensation.
    (this multiple choice question has been scrambled)
  120. ___ connect(s) epithelium to underlying connective tissue.

    A. Basement membrane
    B. Plasma membrane
    C. Keratinocytes
    D. Gap junctions
    A. Basement membrane

    A gap junction or nexus or macula communicans is a specialized intercellular connection between a multitude of animal cell-types. It directly connects the cytoplasm of two cells, which allows various molecules and ions to pass freely between cells.

    The basement membrane is a thin sheet of fibers that underlies the epithelium which lines the cavities and surfaces of organs including skin, or the endothelium which lines the interior surface of blood vessels. The name is somewhat misleading in that the basement membrane is not actually a membrane; rather, it is a matrix beneath any epithelium.

    Keratinocyte is the predominant cell type in the epidermis, the outermost layer of the skin, constituting 90% of the cells found there. Those keratinocytes found in the basal layer (stratum basale) of the skin are sometimes referred to as "basal cells" or "basal keratinocytes".

    The cell’s outer membrane made up of a two layers of phospholipids with embedded proteins. The plasma membrane separates the contents of the cell from its outside environment, and it regulates what enters and exits the cell.
    (this multiple choice question has been scrambled)
  121. Most animals have glands derived from ___ tissue.

    A. epithelial
    B. connective
    C. nervous
    D. muscle
    A. epithelial

    Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the cavities and surfaces of structures throughout the body, and also form many glands. Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport and detection of sensation.
    (this multiple choice question has been scrambled)
  122. Only ___ cells have cilia or microvilli at their surface.

    A. muscle
    B. connective
    C. nervous
    D. epithelial
    D. epithelial

    Epithelium is one of the four basic types of animal tissue, along with connective tissue, muscle tissue and nervous tissue. Epithelial tissues line the cavities and surfaces of structures throughout the body, and
    also form many glands. Functions of epithelial cells include secretion, selective absorption, protection, transcellular transport and detection of sensation.

    Microvillus (plural Microvilli) are each of a large number of minute projections from the surface of some cells.

    Any of the minute hairlike structures projecting from the surface of certain types of epithelial cells, especially those of the small intestine.
    (this multiple choice question has been scrambled)
  123. The most abundant protein in the human body is ___, made by fibroblasts.

    A. keratin
    B. melanin
    C. collagen
    D. hemoglobin
    C. collagen

    a Fibroblasts is a cell in connective tissue that produces collagen and other fibers.

    Collagen is the main structural protein found in animal connective tissue, yielding gelatin when boiled.

    Keratin is a fibrous protein forming the main structural constituent of hair, feathers, hoofs, claws, horns, etc.

    Melanin is a dark brown to black pigment occurring in the hair, skin, and iris of the eye in people and animals. It is responsible for tanning of skin exposed to sunlight.

    Hemoglobin is a red protein responsible for transporting oxygen in the blood of vertebrates. Its molecule comprises four subunits, each containing an iron atom bound to a heme group.
    (this multiple choice question has been scrambled)
  124. ___ consists mainly of plasma.

    A. Bone
    B. Loose connective tissue
    C. Blood
    D. Cartilage
    C. Blood
    (this multiple choice question has been scrambled)
  125. Your body converts excess carbohydrates and proteins to fats that accumulate in ___.

    A. neurons
    B. fibroblasts
    C. adipose tissue cells
    D. melanocytes
    C. adipose tissue cells

    A fibroblast is a cell in connective tissue that produces collagen and other fibers.

    A neuron is a specialized cell transmitting nerve impulses; a nerve cell.

    Adipose tissue, or fat, is an anatomical term for loose connective tissue composed of adipocytes. Its main role is to store energy in the form of fat, although it also cushions and insulates the body.

    A melanocyte is a mature melanin-forming cell, typically in the skin.
    (this multiple choice question has been scrambled)
  126. ___ tissues are the body's most abundant and widely distributed tissue.

    A. Connective
    B. Epithelial
    C. Muscle
    D. Nervous
    A. Connective
    (this multiple choice question has been scrambled)
  127. Cells of ___ can shorten (contract).

    A. muscle tissue
    B. nervous tissue
    C. epithelial tissue
    D. connective tissue
    A. muscle tissue
    (this multiple choice question has been scrambled)
  128. muscle tissue has a striped appearance and is under voluntary control.

    A. Smooth
    B. Cardiac
    C. Skeletal and cardiac
    D. Skeletal
    D. Skeletal
    (this multiple choice question has been scrambled)
  129. ___ detects and integrates information about changes and controls responses to those changes.

    A. Nervous tissue
    B. Epithelial tissue
    C. Muscle tissue
    D. Connective tissue
    A. Nervous tissue
    (this multiple choice question has been scrambled)
  130. Thin cytoplasmic projections from cells called ___ carry signals between your spinal cord and your toes.

    A. keratinocytes
    B. neurons
    C. fibroblasts
    D. neuroglial cells
    B. neurons
    (this multiple choice question has been scrambled)
  131. The functions of skin include ___.

    A. all of these
    B. helping to cool the body
    C. production of vitamin D
    D. defense against pathogens
    A. all of these
    (this multiple choice question has been scrambled)
  132. When the level of sugar in your blood falls too low, your body senses this decline and converts glycogen to sugar, putting more sugar into your blood. This is an example of ___.

    A. differentiation
    B. homeostasis
    C. negative feedback and homeostasis
    D. negative feedback
    C. negative feedback and homeostasis
    (this multiple choice question has been scrambled)
  133. exocrine gland

    A. secretes through duct
    B. outermost skin layer
    C. plasma, platelets, and cellsh. increases with sun exposure
    D. contracts, not striated
    E. ductless hormone secretor
    F. mainly loose connective tissue
    G. in heart only
    i. secreted by fibroblasts; most abundant protein in a human body
    j. support in ears and nose
    A. secretes through duct
    (this multiple choice question has been scrambled)
  134. endocrine gland

    A. secretes through duct
    B. increases with sun exposure
    C. contracts, not striated
    D. mainly loose connective tissue
    E. ductless hormone secretor
    F. support in ears and nose
    G. secreted by fibroblasts; most abundant protein in a human body
    H. outermost skin layer
    I. in heart only
    J. plasma, platelets, and cells
    E. ductless hormone secretor
    (this multiple choice question has been scrambled)
  135. Epidermis

    A. Plasma, platelets, and cells
    B. Ductless hormone secretor
    C. Outermost skin layer
    D. Secretes through duct
    E. Increases with sun exposure
    F. Secreted by fibroblasts; most abundant protein in a human body
    G. Contracts, not striated
    H. In heart only
    I. Mainly loose connective tissue
    J. Support in ears and nose
    C. outermost skin layer
    (this multiple choice question has been scrambled)
  136. dermis

    A. Ductless hormone secretor
    B. Plasma, platelets, and cells
    C. Mainly loose connective tissue
    D. In heart only
    E. Secretes through duct
    F. Increases with sun exposure
    G. Support in ears and nose
    H. Contracts, not striated
    I. Outermost skin layer
    J. Secreted by fibroblasts; most abundant protein in a human body
    C. mainly loose connective tissue
    (this multiple choice question has been scrambled)
  137. smooth muscle

    A. Increases with sun exposure
    B. Plasma, platelets, and cells
    C. Outermost skin layer
    D. Mainly loose connective tissue
    E. Ductless hormone secretor
    F. In heart only
    G. Contracts, not striated
    H. Secretes through duct
    I. Support in ears and nose
    J. Secreted by fibroblasts; most abundant protein in a human body
    G. contracts, not striated
    (this multiple choice question has been scrambled)
  138. Cardiac muscle

    A. Secreted by fibroblasts; most abundant protein in a human body
    B. Mainly loose connective tissue
    C. In heart only
    D. Ductless hormone secretor
    E. Secretes through duct
    F. Plasma, platelets, and cells
    G. Outermost skin layer
    H. Contracts, not striated
    I. Support in ears and nose
    J. Increases with sun exposure
    C. In heart only
    (this multiple choice question has been scrambled)
  139. Blood

    A. In heart only
    B. Secreted by fibroblasts; most abundant protein in a human body
    C. Increases with sun exposure
    D. Plasma, platelets, and cells
    E. Outermost skin layer
    F. Support in ears and nose
    G. Mainly loose connective tissue
    H. Secretes through duct
    I. Contracts, not striated
    J. Ductless hormone secretor
    D. Plasma, platelets, and cells
    (this multiple choice question has been scrambled)
  140. Melanin

    A. In heart only
    B. Contracts, not striated
    C. Plasma, platelets, and cells
    D. Mainly loose connective tissue
    E. Secreted by fibroblasts; most abundant protein in a human body
    F. Secretes through duct
    G. Ductless hormone secretor
    H. Outermost skin layer
    I. Increases with sun exposure
    J. Support in ears and nose
    I. Increases with sun exposure
    (this multiple choice question has been scrambled)
  141. Collagen

    A. Secreted by fibroblasts; most abundant protein in a human body
    B. Contracts, not striated
    C. Secretes through duct
    D. Ductless hormone secretor
    E. Increases with sun exposure
    F. Outermost skin layer
    G. In heart only
    H. Mainly loose connective tissue
    I. Plasma, platelets, and cells
    J. Support in ears and nose
    A. Secreted by fibroblasts; most abundant protein in a human body
    (this multiple choice question has been scrambled)
  142. Cartilage

    A. Secreted by fibroblasts; most abundant protein in a human body
    B. Secretes through duct
    C. Ductless hormone secretor
    D. Support in ears and nose
    E. Mainly loose connective tissue
    F. In heart only
    G. Outermost skin layer
    H. Plasma, platelets, and cells
    I. Increases with sun exposure
    J. Contracts, not striated
    D. Support in ears and nose
    (this multiple choice question has been scrambled)
  143. Secretes through duct

    A. Endocrine gland
    B. Collagen
    C. Cardiac muscle
    D. Exocrine gland
    E. Blood
    F. Cartilage
    G. Melanin
    H. Smooth muscle
    I. Epidermis
    J. Dermis
    D. Exocrine gland
    (this multiple choice question has been scrambled)
  144. Ductless hormone secretor

    A. Collagen
    B. Exocrine gland
    C. Dermis
    D. Epidermis
    E. Cartilage
    F. Melanin
    G. Endocrine gland
    H. Smooth muscle
    I. Blood
    J. Cardiac muscle
    G. Endocrine gland
    (this multiple choice question has been scrambled)
  145. Outermost skin layer

    A. Collagen
    B. Endocrine gland
    C. Dermis
    D. Cardiac muscle
    E. Blood
    F. Epidermis
    G. Smooth muscle
    H. Exocrine gland
    I. Cartilage
    J. Melanin
    F. Epidermis
    (this multiple choice question has been scrambled)
  146. Mainly loose connective tissue

    A. Melanin
    B. Cardiac muscle
    C. Smooth muscle
    D. Exocrine gland
    E. Endocrine gland
    F. Cartilage
    G. Epidermis
    H. Collagen
    I. Dermis
    J. Blood
    I. Dermis
    (this multiple choice question has been scrambled)
  147. Contracts, not striated

    A. Dermis
    B. Blood
    C. Cardiac muscle
    D. Epidermis
    E. Melanin
    F. Collagen
    G. Cartilage
    H. Endocrine gland
    I. Smooth muscle
    J. Exocrine gland
    I. Smooth muscle
    (this multiple choice question has been scrambled)
  148. In heart only

    A. Cardiac muscle
    B. Dermis
    C. Melanin
    D. Blood
    E. Endocrine gland
    F. Smooth muscle
    G. Exocrine gland
    H. Epidermis
    I. Cartilage
    J. Collagen
    A. Cardiac muscle
    (this multiple choice question has been scrambled)
  149. Plasma, platelets, and cells

    A. Cartilage
    B. Cardiac muscle
    C. Melanin
    D. Epidermis
    E. Smooth muscle
    F. Dermis
    G. Endocrine gland
    H. Collagen
    I. Exocrine gland
    J. Blood
    J. Blood
    (this multiple choice question has been scrambled)
  150. Increases with sun exposure

    A. Blood
    B. Smooth muscle
    C. Melanin
    D. Dermis
    E. Exocrine gland
    F. Epidermis
    G. Cartilage
    H. Cardiac muscle
    I. Collagen
    J. Endocrine gland
    C. Melanin
    (this multiple choice question has been scrambled)
  151. Secreted by fibroblasts; most abundant protein in a human body

    A. Melanin
    B. Cartilage
    C. Endocrine gland
    D. Collagen
    E. Exocrine gland
    F. Dermis
    G. Smooth muscle
    H. Cardiac muscle
    I. Epidermis
    J. Blood
    D. Collagen
    (this multiple choice question has been scrambled)
  152. Support in ears and nose

    A. Cardiac muscle
    B. Cartilage
    C. Exocrine gland
    D. Endocrine gland
    E. Dermis
    F. Melanin
    G. Collagen
    H. Blood
    I. Epidermis
    J. Smooth muscle
    B. Cartilage
    (this multiple choice question has been scrambled)

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