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AP Focus 6
Kingdom System- Animal Phyla
| Question | Answer |
|---|---|
| All animals are multicellular and lack | cell walls |
| Animals are ______, spend a majority of their life as _______ organisms, and most are ________. | heterotrophs, diploid, motile |
| Animals can be differentiated by: | Body symmetry, degree of cephalization, and presence/absence of a coelem |
| Body symmetry | radial, bilateral, assymetrical |
| Degree of cephalization | nerve tissue concentration near the anterior end- brain |
| During development there are three main tissue layers: | outer ectoderm, inner endoderm, middle mesoderm |
| Ceolomate | Cavity lined with mesoderm forms and fills with fluid to cushion the internal organs |
| Pseudocoelomates | Have a cavity that lacks full mesoderm lining |
| Protosomes | Form a mouth from the first infolding during embryonic cleavage and their cleavage staggers new cells at an angle (spiral) |
| Deuerosomes | Form an anus first and their cleavage helps keep cells aligned (radial)- humans |
| Porifera name | sponges |
| Cnidaria name | jellyfish, corals, sea anemone |
| Platyhelminthes name | flatworms |
| Nematoda name | roundworms |
| Mollusca name | octopus, clams, snails |
| Annelida name | segmented worms, earthworms, leeches |
| Anthropoda name | spiders, insects, crustaceans |
| Ecinidermata name | sea stars, sea urchins, sea cucumbers |
| Chordates examples | tunicates, lancelets, fish, mammals |
| Sponges are sessile and filter feed using cells called ________ or __________ | collar cells, choanocytes |
| Sponges water exits through an | osculum |
| Sponges have an endoskeleton made of _______ or _______ spicules | CaCO3, Si02 |
| Cnidaria sting prey with cells called | nematocysts |
| Cniadaria two major body forms: | polyp (hydra) and medusa (jellyfish) |
| Flatworms are ___________ that include plan aria and parasites like ______ with sections of ___________ for reporoduction | acoelomates, tapeworms, proglottids |
| Roundworms are pseudocoelemates that can be free living or parasitic, examples are | Ascaris or pinworms |
| Mollusks are protostomes and have a ______ protecting their inner organs (visceral mass) | mantle |
| Mollusks belt of teeth | radula |
| Direct development | egg adult |
| Incomplete metamorphasis | egg nymph adult |
| Complete metamorphosis | egg larva pupa adult |
| Annelida | protostomes |
| Ecinodermata | deuterostomes with 5 part radial symmetry, chuck gonads |
| To be a chordate must: | have a notochord, dorsal hollow nerve chord, pharyngeal gill slits, and a post-anal tale |
| notochord | cartilage rod along the back often replaced by bone |
Created by:
AliRutherford
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