Question:
all reptiles have three chambered heart but crocodile have four chambered why??
Answer:
Hi there!
As a reptile, crocodiles have to spend a lot of their time underwater. The four-chambered heart helps in the retention of oxygen for longer periods underwater by reducing the heart rate up to 2-3 beats per minute. This sets it apart from other reptiles which possess hearts with only three chambers. This adaptation is a result of evolution which needed the later reptiles to survive better underwater and on the surface.
Thanks
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