A circulatory system is very essential in mamma... - JAMB Biology 2014 Question
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 option: b
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