The process in which animal undergoes many physica changes before becoming an adult
Answers
Explanation:
The changes in your body during puberty are caused by hormones which are chemicals produced in your body.
Showing the physical changes in the male body during puberty
Showing the physical changes in the male body during puberty
These hormones are like chemical messages that cause the testicles or the ovaries to release other hormones.
All these hormones work together to start the changes in puberty.
WHEN DOES PUBERTY START?
There is no set age when this will happen. Puberty may start when you are eight or it may not start until much later.
In girls, puberty can starts anywhere between the ages of eight and 13 years old but often the first changes happen around 10 or 11 years of age.
In boys, puberty tends to start a little later than for girls - somewhere between 10 and 15 years. For many boys, the first changes start to happen when they are around 11 or 12 years old.
WHAT ARE THE HORMONES?
The main hormones during puberty are testosterone for boys and oestrogen and progesterone for girls.
Girls
During puberty your ovaries get bigger and your body will start to produce two hormones - oestrogen and progesterone.
Oestrogen causes your breast to grow and helps your vagina, uterus and fallopian tubes to develop. It also makes you grow taller and also changes the way fat is stored on your body
After puberty, oestrogen and progesterone control your menstrual cycle or period.
Boys
For young men, the hormone testosterone is the hormone that starts development from boy to man.
Testosterone is the major male sex hormone and it is produced in the testes.
Testosterone levels rise significantly during puberty. When levels are high enough, testosterone starts the production of sperm, causes the chest and shoulders to broaden and causes facial hair to grow.
Answer:
Metamorphosis in animals and series of events called puberty in adolescence in humans
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