joey141
joey141 joey141
  • 02-11-2016
  • Chemistry
contestada

which organism has a central brain A.sponge B. hydra C. flatworm D. fish

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scme1702
scme1702 scme1702
  • 26-11-2017
D. Fish
The brain is part of an organism's central nervous system. Simpler organisms such as sponges, hydrae, and flatworms lack the complexity in their central nervous systems to have a brain. A fish, on the other hand, is complex enough to have a central brain.
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cocodemain
cocodemain cocodemain
  • 27-11-2017
im pretty sure its  D. Fish
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