Question

Explain what happens after a hen lays a fertilized egg.

Explain the life cycle of a frog ,with the help of neat and labelled diagram​

Answer 1

Answer:

answer

Explanation:

Explain what happens after a hen lays a fertilized egg.

After fertilization, a hard protective layer formed over a hen's egg. After the hard shell is formed around the embryo, the hen lays the egg. After laying egg hen sit on egg to keep it warm. Development of the chick takes place inside the shell. It takes about 3 weeks for the embryo to develop into a chick. After its development is complete, the chick comes out by bursting open the egg shell.

Explain the life cycle of a frog ,with the help of neat and labelled diagram

Frog lay cluster of eggs in water.They are called frog swamp.The eggs undergo repeated cell division to form embryo. After 21 days. Embryo leaves the jelly-like shell and develops into a tadpole which is attached to weeds in waters. After 5 weeks, the tadpole begins to transform into a young frog. After 11 weeks, a fully developed frog emerges from water.