In bilateral animals, ____ is contained within a cavity, cushions the gut during body movements, and is a means by which materials are distributed throughout the body.
A) a coelom
B) mesoderm
C) a mantle
D) a water-vascular system
E) coelomic fluid
Correct Answer:
Verified
Q21: A flatworm moves nutrients and gases through
Q22: Elephantiasis is caused by damage of valves
Q23: Which animal group does not have tissues?
A)nematodes
B)sponges
C)echinoderms
D)flatworms
E)cnidarians
Q24: Arthropods usually detect chemicals in water or
Q25: The intestinal parasite Ascaris lumbricoides currently infects
Q27: Which feature is a disadvantage of an
Q28: Animals with _ have a distinctive head
Q29: Spiders use which mouthparts for subduing prey?
A)mandibles
B)pedipalps
C)chelicerae
D)maxillae
E)labial
Q30: Four of the five answers listed below
Q31: Cnidarians have an outer layer derived from
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