passwella.
Menu

JAMB Biology 2003 Question 1

Question 1

Reproduction in Animals

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

  1. A.chalaza
  2. B.yolk
  3. C.albumen
  4. D.embryo disc.
Show the answer and explanation

Answer: D (embryo disc.)

Explanation

The embryo grows from the small embryo (germinal) disc that sits on the surface of the yolk. The yolk and albumen feed it, and the chalazae hold the yolk in place.