Gemmules contain masses of __________ which can survive freezing or drying.
A) amoeboid cells
B) porocytes
C) choanocytes
D) spongin
E) pinacocytes
Correct Answer:
Verified
Q10: The taxonomy of sponges is determined by
A)the
Q11: Excretion and gas exchange in sponges are
Q12: The _ is the simplest,but least common
Q13: Eggs and sperm of sponges are commonly
Q14: The single large opening at the top
Q16: One proposed mechanism for the evolution of
Q17: Contractile pinacocytes that can regulate water circulation
Q18: The collar of a choanocyte
A)regulates the diameter
Q19: The unique adhesive cells of ctenophores are
A)statoblasts.
B)cnidoblasts.
C)colloblasts.
D)pleuroblasts.
E)statoliths.
Q20: Freshwater (and some marine)sponges form resistant structures
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