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Animals posses nerve networks or nervous...

Animals posses nerve networks or nervous systems to respond to their environment. But the single celled Amoeba does not possesses any nerve cell, so how it come to know whether a particle it encounters is gain or sand and not its dinner

A

By chemotaxis

B

By skin

C

By hormones

D

All of these

Text Solution

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The correct Answer is:
A
Althoght the Amoeba has no sense organs, it responds to chemical stimuli. It makes this determination by chemotaxis, a kind of chemical sense. This is the same reponse mechanism that our white blood use when they encounter and phagocytize a pathogen.
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