In the egg of a bird, the embryo is located in the

Assessment: JAMB UTME - Biology - 2018 Subject: Biology

Question 1 Report

In the egg of a bird, the embryo is located in the
Answer Details
Special temporary organs or embryonic membranes form within the egg, both to protect the embryo and to provide for its nutrition, respiration, and excretion. These organs include the yolk sac. The yolk sac is also responsible for the initial circulation and is in charge of delivering nutrients, via a primitive aorta, to the developing embryo through a process called vitelline circulation.
Read lesson note on Nitrogen Cycle (WAEC)
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