What is the process by which organisms keep their internal conditions fairly constant called?

Compare the composition of the moon's surface with the composition of the earth's surface.

Dna. we have heard that we are a product of our dna. but where is it? how do we "get" our dna? it is passed to us, from our parents, but in what form? several vocabulary words associated with inheritance are used interchangeably and sometimes, incorrectly. let's see if you can clear this up for someone just learning about inheritance and cell structure.

Gene expression is the activation of a gent that results in a question 1 options: protein dna mitochondria