True/False
Most of the hydrozoans are colonial marine animals with both an asexual polyp and a sexual medusa stage in their life cycle.
Correct Answer:
Verified
Correct Answer:
Verified
Q1: The tall secretory cells around the pedal
Q2: All ctenophores are marine,and most of them
Q4: The neuromuscular system first evolved in the
Q5: The medusa of Obelia is the<br>A)sexual jellyfish
Q6: Coral reefs are limited to areas<br>A)of shallow
Q7: The morphological type adapted to a sedentary
Q8: The radiate animals represent the tissue-organ level
Q9: Ctenophores capture prey by use of<br>A)nematocysts.<br>B)collenchyme.<br>C)colloblasts.<br>D)statocysts.
Q10: The _ are often bioluminescent.<br>A)anthozoans<br>B)ctenophores<br>C)hydrozoans<br>D)scyphozoans<br>Fill in the
Q11: Octocorallian corals include soft corals,sea pansies,sea pens,and