I think it C hope this helps
Answer:
He could make a macromolecule which is made up of carbon and hydrogen only.
Explanation:
An atom a fundamental piece of matter that constitutes a chemical element.
A molecule is a group of atoms bonded together. It represents the smallest fundamental unit of a chemical compound that can participate in a chemical reaction.
The red balls denote the hydrogen and black balls denote the carbon. He could make a macromolecule which is made up of carbon and hydrogen only.
There are 23 chromosomes in each gamete but that includes the two sex chromosomes so you could say each human gamete has 21 autosomes.
Answer:
they need to be able to maintain their salt content, thru osmoregulation
