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Which organism has the more efficient heart? A: a frog B: a robin C: an alligator D: a tuna​
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14 votes
Which organism has the more efficient heart?

A: a frog
B: a robin
C: an alligator
D: a tuna​

User Krunal Sonparate
by
8.2k points

2 Answers

9 votes

Answer:

I think its a alligator or a frog I'm not rlly sure but I think it might be a alligator

User Cakraww
by
7.9k points
4 votes
B. Robin

Mammals and birds have the most efficient hearts
User Zakmck
by
8.3k points
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