Phylum Cnidaria
Process in which at a certain point in life of an organism, organism changes its sex is called:
alternation
switch
protandry
dioceous
protandry
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Coelenteron is term that means:A. blood cavity
B. gut cavity
C. coelom cavity
D. homocoel
Most primitive nervous system is characteristic of:
A. flies
B. earthworm
C. hydra
D. round worm
Common example of coelenterates is:
A. jelly fish
B. cuttle fish
C. star fish
D. dog fish
Special characteristic of cnidarians, having two body forms, known as:
A. dioceous
B. monoicous
C. alternation of generation
D. hermaphrodite
Hydra has a nervous system but lack
A. eyes
B. tentacles
C. cavity
D. brain
Who named phylum coelenterate?
A. hatcheck
B. leukart
C. Haeckel
D. Aristotle
Body cavity of hydra is named as:
A. hydrocele
B. homocoel
C. coelenteron
D. coelom
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