Question

Amoeba becomes very active at

• A. 20 - 25${}^o$C
• B. 25 - 30${}^o$C
• C. 30 - 35${}^o$C
• D. 35 - 40${}^o$C

Answer 1

Answer: (A)

20 - 25${}^o$C

Amoeba belongs to the kingdom Protista and has the ability to alter its shape, with the help of pseudopods. Since this does not have a nervous system, nor sensory organelles, they solely rely on their cytoplasm for sensitivity. Amoeba responds to various stimuli such as thigmotaxis, and phototaxis. Amoeba tends to collect together in moderately warm water which is how it reacts to heat. Further, the effect of premature on Amoeba can be seen in the rate of growth and reproduction. The proteus avoids cold temperature below 10 C and heat above 35 C, it is active in temperatures between 20-25${}^O$C.