Biology, asked by rajd1503, 1 year ago

The human pregnancy lasts for nine month . Mention the features of embryonic development at various months of pregnancy

Answers

Answered by uditsharma1
0
in embryonic development
one month= heart is formed.the first sign of growing feotus may be noticed by listening to the heart sound.

Second month = the foetus develops limbs and digits.

Third month (first trimester / 12weeks)= most of the major organ are formed . the limbs and external genitalia organ are well developed.

Fifth month= the first movement of foetus.
appearance of hai on head are usually observed.

24 weeks ( end of second trimester )= the body is covered with fine hair, eyelids separate and eye lashes are formed.

uditsharma1: buddy you are in class 12 this matter is sufficient because ncert provide only this matter.
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