Answer:
in veins, blood flows towards the heart
Explanation:
At adolescence, the pituitary activates the gonads which are the ovaries in females and testicles in males. Gonads is a sex gland or a reproductive gland that produces gametes which are the sex cells and sex hormones in organisms.
<span>Depending upon the nature of reaction, enthalpy changes ( heat of reaction ) accompanying chemical reaction are expressed in different ways.</span>
Exercising increases life longevity
