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
Explanation
Correct Option
bNo explanation available
Video Explanation
Post your Contribution
Share:
Discussions (1)
ohimaid
9 years ago
yes, since its small and unicellular, it doesn't need an equipped circating system,
rather, it needs circulation with a simple mode known as diffusion.
