what are the change seen in girls during the onset of puberty in animal.
Answers
Answer:
Testes and ovaries are the reproductive organs. They produce the gametes, that is, sperms and ova. In girls, breasts begin to develop at puberty and boys begin to grow facial hair, that is, moustaches and beard. As these features help to distinguish the male from the female they are called secondary sexual characters.
Answer:
the onset of puberty period usually result in dramatic, sudden and visible increase in height and weight . There is change in the body proportions. The arm and legs grow faster then the rest of the body. The spurt in physical growth is more evident in girls in between 11-13 years of age.
THE CHANGE IN SIZE OF HEART AND LUNGS : there is change in shape and size of lungs and heart they are equally very important. the diameter of heart increases by about 50 per cent and the weight almost double itself there is increase in size and shape of lungs.
there is change in shape and size of body
during puberty the sweat glands of body develops and there is increased secretion of sweat. acne and pimple are common among adolescents dur to increased production of sebum from sebaceous glands