Which elements are the most common substance in the human body? A. Hydrogen B. Calcium and nitrogen C. Oxygen D. Carbon

The answer is A. Hydrogen

Explanation:

Your body is made up of mostly water. Although i forgot the certain percent its more than any other thing in your body.

Hope this helped.

A brainliest is always appreciated.

tsd is temerature dependent sex determination.

tsd: it is a type of environmental sex determination in which the temperature experienced during embryonic/ larval development (ambient temperature for development) determine the sex of the offspring.

crocodile displays the tsd where the ambient temperature of the developing egg determines the individual's sex. for example in the american alligator's eggs, incubation at 33 ºc produces mostly males, while incubation at 30 ºc produces mostly females. so if the american alligator's egg will get the ambient temperature (33 degree celcius)during embryonic development from egg, the offspring will be male and same for the female sex determination.