Card Set Information
Intro to Animals
What is an animal?
Eukaryotic, Multicellular, Ingestive heterotrophs, No cell walls, one common ancestor
Animals are a __________ Group
What are Hox Genes?
Hox Genes controls you body plans, Limb placement
How to differentiate animal groups
Cell level vs. tissues/ organ level
number of germ layers
Development of and embryo
Presence of body cavity
Animals that have 2 germ layers are ________? And are called _________ and _______?
Diploblastic; ectoderm and endoderm
Animals that have 3 germ layers are ________? And are made or _________, ________ and _______?
Triploblastic; ectoderm, endoderm and mesoderm
In _________ blastopore becomes the mouth?
In _________ the blastopore becomes the anus?
_________ have no fluid filled body cavity?
_________ have fluid filled body cavity?
__________ have enclosed fluid filled body cavity?
The Ectoderm becomes the ______?
The Endoderm becomes ________?
The mesoderm becomes the ________?
Everything in between
The process of producing gametes is called ____________?
Animals that contain both sexual reproduction parts are called _________?
Animals that have separate sexes are _______?
What is the Phylum are sponges?
___________ skeleton is fluid willed body compartments and hydrostatic pressure provides support.
__________ is and external skeleton that surround or protects the body surface
__________ internal skeleton that provides body support.
Define sponge body system
Support and movement- endoskeleton, spicules and other are embedded in a mesoglea
no nervous system
gas exchange across cell walls
Phagocytosis and digestion in cells
Excretory through diffusion
Name the three types of sponge structure
Asconoid- simple sac with large osculum
Syconoid- medium complexity
Leuconoid- Most complex, many pores and canals
________ are flat cells on the outside
_____ are tubular cells for water flow
____ are flagellated cells that cause water to flow
________ are cells that move between moving food and secreting substances
Name the threes major classes of sponges
Calcarea- Calcareous spongers
Hexatinellida- glass sponges
Demospongiae- bath sponges
Negative affect on both species
Positive affect on both species
Positive affect on one species and no affect on the other
Define parasitism and predation
Positive affect on one species and negative on the other
What phylum do jellyfish belong to? _________ (comb jellies) and _______ (jellyfish) classes make up this phylum?
Radiata; Ctenophora and Cnidaria
Level of organization, # of germ layers and symmetry of Radiata?
Tissue and organ, 2 germ layers (Diploblastic) and Radial
Comb jelly have a ________ ___ digestive system with mouth and ___ anal pores?
Complete gut; 2
Jellyfish (cnidarian) digestive system have an ________ ___ = gastrovascular cavity?
Cnidarian (jellyfish) life cycle is?
The Protostomes are divided into the 2 major clades __________ and _______?
Lophotrochozoa and Ecdysozoa
What phylum do flatworms belong to?
Flatworms are ________ lacking that fluid filled body cavity
_______ is the concentration of important organs in the anterior end of the organism
____ are some sense organs that detect light
What are the three classes of Platyhelminthes (flatworms)?
Turbellaria, Trematoda(flukes) and Cestoda(tapeworms)
________ host= host where parasite reaches adult stage
___________ host= host infected with earlier stages of parasite
What is Schistosomiasis?
Infection of blood flukes
______ is the anterior end in Cestoda (tapeworms) that attaches to host
______ is the repeating reproductive units in Cestoda (tapeworm)
What phylum so rotifers belong to?
Rotifera have ___________= hydrostatic skeleton
What is Parthenogenetic?
all females; diploid eggs are produced without meiosis or fertilization
What three classes make up the phylum lophophorata?
Phoronids, Bryozoans and Brachiopods
What phylum do earthworms, leeches and segmented worms belong to?
Sexual reproduction in Annelida is?
Hermaphroditic or separate sexes
Annelida have a _______=fluid-filled cavity present
_________ is a body of repeating segments divided by septa, and parts of body systems are repeated in each segment
Snails, slugs, chitons, oysters, clams, mussels, squids, octopi and scallops etc make up what phylum?
Mollusca are ____balstic and are ____=fluid-filled cavity around their heart
Mollusca have a ____ circulatory system
What are the four major class of Phylum Mollusca?
Polypacohora(chitons), Gastropoda(snails, slugs), Bivalvia(calms, mussels),and Cephalopoda (Octopi, squids)
What are the two major classes of the Phylum Ecdysozoans?
Nematoda ( roundworms) and Arthropods ( arthropods)
The process in which the exoskeleton is shed or molted id called _______?
The phylum Nematoda is best for studying the _________ system?
Phylum Arthropoda have and ___ circulatory system?
The sub class Chelicerates are ______?
Spiders, Scorpions, Horseshoe crabs
The sub class Myriapods is made up of ______?
Millipedes and centipedes
The sub class hexapods is _____?
The sub class Crustanceans is made up of ______?
Crabs and relatives
Subphylum Chelicerata (spiders) has __-__ of appendages? __ pair of chelicerae? __ pair of pedipalps? __-__ pairs of walking legs?
6-7; 1; 1; 4-5
The class Merostomata are _______ ___? The ___ is he shield? The ____ is the spike like tail? The ___ ___ are leaf like exposed gills?
Horseshoe Crab; Carapace; Telson; Book Gills
Class Archnida is ______?
Spiders, mites, ticks, Scorpions
Insects have an ___ circulatory system?
______ for air channel to take gases directly to tissues?
_____= the ecological role and space that and organism occupies within an ecosystem
Factors that help define a niche?
Feeding, Temp/Climate, Body plan, Competition, mating, defense, locomotion, housing, behavior, life cycle, size