CSS :: Phylum Cnidaria or Coelentrata

@ : Home > Zoology > Phylum Cnidaria or Coelentrata

Hydra shows positive responses as well as negative responses, in dim and bright light it shows:

[A].	Negative responses to both	[B].	Positive response to both
[C].	Positive response to weak light and negative to bright one	[D].	Negative response to weak light and positive response to bright light

Answer: Option C