Advertisements
Advertisements
प्रश्न
During adolescence, reproductive phase starts and ______.
पर्याय
general growth rate begin to show down
height becomes less
the body weight is reduced
hair growth decreases
उत्तर
During adolescence, reproductive phase starts and general growth rate begin to show down.
Explanation:
As the rate of general body growth begins to slow down, reproductive tissues begin to mature. This period during adolescence is called puberty.
APPEARS IN
संबंधित प्रश्न
Describe, in brief, the changes the uterus undergoes
(i) to receive the zygote.
(ii) if zygote is not formed
The site of maturation of human sperms is the
What is the scientific name of birth canal?
During adolescence, several changes occur in the human body. Mark one change from the following associated with sexual maturation in boys.
The ratio of the number of chromosomes in a human zygote and a human sperm is ______
When a human female reaches a certain age then vaginal bleeding occurs for a few days after regular time intervals.
(a) What is this process known as (i) in scientific terms, and (ii) in everyday language?
(b) At what approximate age this process starts in human females? When is the human female said to have attained at this stage?
(c) After how much time is this process repeated? For how many days does this process usually last?
(d) What does the onset of this process in human females signify?
(e) At which particular event in the life of a human female does this process stop temporarily but start again?
(f) At which approximate age of human female does this process stop permanently?
The germ cell A produced by a person X is round in shape and it fuses with another germ cell B having a long tail and produced by a person Y. The fusion of A and B produces a new cell C. The cell C divides repeatedly and grows inside the organ D of person X to form E in which the body features of the unborn baby are not much developed. E grows further to form F in which the various body features of the unborn baby (like hands, legs, head, eyes, and ears, etc.) can be identified. F grows further and ultimately forms a baby. What are A, B, C, D, E and F? Out of the two persons X and Y, which one is male and which one female?
Describe in brief the role of prostate gland in human male reproductive system.
Define the following:
Sexual reproduction
Name the organs of the human male reproductive system and state the functions of any two organs.