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ohmyitslex ohmyitslex
  • 27-07-2016
  • Biology
Answered

Which of the following animals is the most complex? Base your decision on body plan, structures used to carry out various functions, and structures used to respond to the environment


flatworms

hydras

sponges

sea urchins

Verified Answer :

sidrabutt0077
sidrabutt0077 sidrabutt0077
  • 27-07-2016

I think so Flat worms are more complex in all these options.because they have better response system than other options.

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ayeshaaman58
ayeshaaman58 ayeshaaman58
  • 27-07-2016

flatworms.................

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