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In birds the embryo develops externally. It is totally dependent on food stored in the egg for
its nourishment; In mammals the embryo receives nourishment from the mother through the placenta
Kavungya answered the question on June 18, 2019 at 06:58
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)
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Date posted: June 18, 2019. Answers (1)