Question

Birds lay eggs because

Answer 1

Answer:

Because the birds are oviparous animals and they give their young ones birth without placenta formation

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Answer 2

Answer:

All birds lay eggs because they can't fly with the weight of their babies inside of them. However, in situations where it's dangerous to have your offspring out in the environment, susceptible to predators and bad weather, then animals have adapted to keep their babies inside of them as long as possible.