Animals Flashcards
Bilateral symmetry
Anything with a head, or if cut in half, both sides would be same.
Radial symmetry
All parts radiate out from central point and are same
Asymmetrical
If you don’t know this I can’t help you
Open circulatory system
Blood just kinda flows wherever like sponge, slow
Closed circulatory system
Blood is always inside vessels, fast
Vertebrate
Has backbone, only 5% of all animals, phylum Chordata
Invertebrate
Doesn’t have backbone, 95% of animals on earth
Cephalization
Having a head, with sense organs and nerves
Exoskeleton
Skeleton is on outside
Endoskeleton
Skeleton is on inside
Animals with Fluid-filled body cavity
Earthworms and roundworms
Biodiversity
The huge variety of organisms on this planet
Freshwater habitat
Puddles, ponds, streams, rivers, lakes, inland marshes
Marine habitat
Salt water - ocean
Brackish habitat
Animals live in are where fresh and salt water meet - like an estuary