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Aleksandr-060686 [28]
4 years ago
13

Why does water temperature effect a water fleas heart rate??

Biology
1 answer:
Cloud [144]4 years ago
4 0
Because the water flea (also known as Daphnia) has a small heart (because it is a small insect). Their heart rate is usually 300 per beat and if the water temperature changes all of a sudden, it'll put their bodies in shock and kill them. thats what i think
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