How did land whales eventually became aquatic?

Answer ASAP!!!

Adaptation and natural selection (survival of the fittest)

Explanation:

Whales used to have legs and walk on land but after years of their food sources becoming scarce, the whales adapted overtime to become aquatic mammals, where there is more food and a higher chance of survival.

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you and have a wonderful day

the diploid number of chromosomes is sometimes represented by the symbol 2n. for the fruit fly, the diploid number is 8, which can be written as 2n = 8, where n represents twice the number of chromosomes in a sperm or egg cell.