<span>The gene, is in fact the subunit of information on a chromosome, so this is a true statement. A chromosome is a structure that occurs within cells. It contains the cell's genetic material, which determines how an organism develops. For example, if we are talking about DNA, its molecule is a very long, coiled structure that contains many identifiable subunits known as genes.</span>
Answer:
they are organisms that obtain energy by the oxidation of electron donors in their environment
Explanation:
<span>Photosynthesis is the base of energy flow, because it converts energy from the sun into fuel for plants and animals.</span>
Answer:
C-The total mass off all the organisms in a representative area of the ecosystem.
