Answer:
The correct answer is - carbohydrates.
Explanation:
The four significant groups of macromolecules found in living beings are carbohydrates, lipids, nucleic acids, and proteins. carbohydrates comprised of carbon, hydrogen, and oxygen molecules, generally in a proportion of 1 : 2 : 1.
Living things use carbohydrates as their main form of energy. Carbohydrates are a class of macromolecules is essentially utilized as a quickly accessible energy source by living things.
Thus, the correct answer is - carbohydrates.
Birds help take care of each other’s young to increase their chances of survival and behavior is passed on to offspring
Answer:
A) Mating
Explanation:
Its a) Mating because mating mean to be together with the same opposites in biological term. And intraspecific aggression is totally opposite.
Photosynthesis can't occur in plants in deep water because the photons from the sun can't reach the plants when the depth of water above is too great.
C because they have similar traits