How do Organisms Reproduce intro to human

Question 1

define puberty

Answer 1

Humans have sexual mode of reproduction.
It needs sexual maturation, which is the period of life when production of germ cells i.e., ova (female) and sperm
(male) start in the body. This period of sexual maturity is called puberty.
Puberty is the time when adolescent boys and girls reach sexual maturity and become capable of reproducing.

Question 2

what are primary sexual characteristics

Answer 2

these are charcateristics that are present from birth and differentitate males and females. it is the ovaries in the female and testes in the males.

Question 3

what are secondary sexual charcateristics

Answer 3

These are the physical changes that appear in the body during puberty that help differentiate between two sexes but are not directly related to reproduction.
some common ones include incrase in height,weight, growth of hair in armpit and genital region, darkening of skin in genital region,development of sebaceous glands.

Question 4

what are some secondary sexual charcateristics that is for men

Answer 4

-development of thick facial hair/beard
-development of adam’s apple
-increase in muscle mass
-the voice becomes deeper and begins to crack
-The growth of his testicles

Question 5

what are some secondary sexual charcateristics that is for women

Answer 5

-growth of breast and development of mammary gland
-widening of hips
-voice becomes higher
-menstrual cycle starts

Question 6

why do humans need sexual maturation

Answer 6

Sexual maturation of reproductive tissues is a necessary link for reproduction because of the need for specialised cell called germ-cells to participate in sexual reproduction. The body of the individual organism has to grow to its adult size, the rate of general body growth begins to slow down, reproductive tissues begin to mature.

the actual transfer of germ-cells between two
people needs special organs for the sexual act, such as the penis when it is capable of becoming erect. In mammals such as humans, the baby is carried in the mother’s body for a long period, and will be breast-fed
later. The female reproductive organs and breasts will need to mature to accommodate these possibilities.