A circulatory system is very essential in mammals but not in smaller organisms like Amoeba...
BIOLOGY
JAMB 2014
A circulatory system is very essential in mammals but not in smaller organisms like Amoeba because
- A. Amoeba lives in freshwater
- B. Diffusion is sufficient to transport materials in Amoeba
- C. Amoeba lacks blood containing haemoglobin
- D. Amoeba exibits anaerobic respiration
Correct Answer: B. Diffusion is sufficient to transport materials in Amoeba
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