Anatomy of 4 animal phyla

Question 1

hemocoel

Answer 1

cavity where blood and intersitual fluid is

Question 2

hemolymph

Answer 2

combined fluid of blood and interitual fluid

Question 3

squid

Answer 3

mollusca; open offshore waters, varying depths; siphons, generate jet propulsion, emitt ink, chromatophores over body to change color; gills, closed circulatory, central ganglion, nephrious

Question 4

crab

Answer 4

arthropoda; mostly marine found from coastal estuaries to deep sea vents; exo skeleton, claws; central ganglion, gills, open circulatory, antennal gland

Question 5

lamprey

Answer 5

chordata; marine as adults but larvae requires fresh water; mouth cover in teeth, suction; gills, brain, kidney, endo skeleton, closed circulatory

Question 6

polychaete

Answer 6

annelida; marine, ranging depths, surface, sand near coast; a lot of legs, like parapodia used for respiration; exposes jaw to catch prey; central ganglion and ventral nerve cord, closed circulatory, nephrids

Question 7

Key characteristics of environment

Answer 7

food chain, terrain, amount of sunlight, temp, ph

Question 8

Characteristics of organisms external anatomy

Answer 8

exoskeleton, gills, extermities, parapodia

Question 9

characteristics of internal anatomies

Answer 9

osmo regulation; nervous system; gas exchange; circulatory system