Biol 107 Lab Final

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evander4
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290428
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Biol 107 Lab Final
Updated:
2014-12-02 09:30:44
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Biol
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Lab final
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  1. What is a gymnosperm and what are their main features?
    • Pines/conifers
    • Male and female cones
    • Pollen dispersed by the wind
    • Needle or scale like leaves
    • Cones have "wing" for being dispersed over long distances
  2. What are some advantages that seed plants have over seedless plants (mosses and ferns)?
    • Fertilization does not require water
    • Diploid zygote forms diploid seed that is resistant to drying out
  3. What are angiosperms?
    • Flowering plants
    • Make fruits to protect zygote
  4. What are the characteristics of a monocot?
    • Flower parts in multiples of 3
    • 1 seed leaf (cotyledon)
    • Parallel veins
    • Vascular bundles scattered throughout the stem
    • Large xylem, smaller phloem
  5. What are the characteristics of a dicot?
    • Flower parts in multiiples of 4 or 5
    • 2 seed leaves (cotyledons)
    • net like pattern of veins
    • vascular bundles in a ring in the outer part of stem
    • large xylem, smaller phloem

  6. Label the parts of the flower:

    • 1.Carpel (female)
    • 2. Stamen (male)
    • 3. Petal
    • 4. Stem
    • 5. Sepal
    • 6. Stigma
    • 7. Style
    • 8. Ovary
    • 9. Anther
    • 10. Filament
  7. How are angiosperms pollinated?
    • Primarily animals and insects!
    • Wind
    • Water
  8. What are the 9 phyla of animals and their main characteristics?
    • 1. Porifera: Sponges - body with many pores, no tissue layers, no symmetry
    • 2. Cnidaria: Hydra, jellies, coral - 2 cell layers, radial symmetry, stinging tentacles
    • 3. Flatworms: planaria, tapeworm - flat body, one opening for digestion, bilateral symmetry, cephalization
    • 4. Roundworms: nematoda - mouth and anus, bilateral symmetry, non segmented
    • 5. Segmented worms: earthworms, annelida, leeches - body divided into segments, mouth and anus, moves with bristles, cylindrical and longitudinal muscles
    • 6. Molluscs: clams, snails, squid, octopus - shell of calcium, bivalves, gastropods, cephalopods
    • 7. Echinoderms - starfish, sea urchin, sand dollar - pentaradial symmetry, tube feet for motion and suction
    • 8. Arthropods: exoskeleton, jointed legs - myriapods (centipedes), crustaceans (crabs, 2 pairs of antennae), arachnids (spiders), insects (6 legs, 2 pairs of wings)
    • 9. Chordates: animals with back bones!
  9. What are the 4 characteristics that all chordate embryos share?
    • 1. dorsal hollow nerve cord
    • 2. notocord
    • 3. gill slits
    • 4. post anal tail

  10. What are the 7 classes of chordates?
    • 1. Tunicates and lancelets: no cephalization, filter feeders
    • 2. Jawless fish: lampreys - constant open mouth, cranium and vertebrae
    • 3. Cartilage fish: sharks, rays - skeleton of cartilage
    • 4. Bony fish: perch - bones, air bladder, 2 chambered heart
    • 5. Amphibians: frogs, toads - 1/2 water 1/2 land, external fertilization, small lungs, cutaneous respiration, 3 chambered heart
    • 6. Reptiles: snakes, birds - water tight, scaly skin, internal fertilization, eggs, cloaca, avian (4 chambered heart, endotherm) and non avian (3 chambered)
    • 7. Mammals: mammary glands, hair, endothermic, placenta
  11. What are the main orders of mammals?
    • 1. Chiroptera - bats
    • 2. Rodents - rats, mice
    • 3. Carnivores - cats
    • 4. Even toed hoofed - pigs
    • 5. Primates - monkeys, humans

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