During a nature documentary, Aman learned that whales h... | Science Class 7

Science Class 7 Other

Asked by Y.JESSICA GEONA RAJ · HOME SCHOOL

During a nature documentary, Aman learned that whales have a slow heartbeat,
especially when they dive deep underwater. Why might a whale’s heartbeat slow down
during a deep dive?

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A To help it swim faster
B To save oxygen while underwater
C To make bubbles
D To scare away fish