Write the defination of every male and female reproductive organs and also define all pubertical change

The physical changes through which a child's body matures into an adult body, capable of sexual reproduction. It is initiated by hormonal signals from the brain to the gonads.

(only know that one, sorry!)

enhanced global partnerships and exploration capabilities may advance international preparedness for protecting the earth from catastrophic events such as some asteroid strikes, advancing collaborative research on space weather and protecting spacecraft by developing new means for space debris removal.

c) 50% there are four chromosomes. after crossing over, 2 of the four have been changed. that means any gamete has a 2 in 4 chance or 50% chance of receiving the mutated chromosome.