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Biodiversity (Animals)

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sewoxehe's version from 2015-05-19 23:51

Section

Question Answer
What are the characteristics of all animals?eukaryotic, no cell walls
Which groups of animals have a gastrovascular cavity?cnidaria, flatworms
Which groups of animals have a complete digestive tract?round worms, molluscs, segmented worms, athropods, echinoderms, chordata (RAMSEC)
Which groups of animals are sessile (don't move)porifera (sponges)
Have a coelem?mollusks, segmented worms, arthropods, echinoderms, chordata (MESCA)
Have an exoskeleton?arthropods
Have an endoskeleton?echinoderms, chordata
Are ectothermic?Porifera, Cnidaria, Flatworms, Round worms, mollusks, segmented worms, arthropods, echinoderms, reptiles, amphibians (FRAAMREAP)
Are endothermic?birds, mammals
produce amniotic eggs?reptiles, birds, mammals
have jointed appendages?arthropods
metamorphosis?insects, amphibians
external digestionechinoderms, arthropods
vertebrates?chordata
2 chambered heart?fish
3 chambered heart?amphibians, most reptiles
4 chambered heart?birds, mammals, crocodiles, alligators
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