1.

Which of the following statements about Spongilla, leech, dolphin and penguin is correct?

A. Penguin is homoiothermic while the remaining three are poikilothermic.
B. Leech is found in fresh water form while all others are marine.
C. Darwin, five kingdom scheme.
D. All are bilaterally symmetrical.
Answer» D. All are bilaterally symmetrical.


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