Answer:
Cellulose is the main substance found in plant cell walls and helps the plant to remain stiff and strong
Explanation:
A peptide bond is a chemical bond formed between two molecules when the carboxyl group of one molecule reacts with the amino group of the other molecule, releasing a molecule of water.
<span>biological </span>evolution<span> is the process of change by which new species develop from preexisting species over time; in </span>genetic terms<span>, </span>evolution<span> can be defined as any change in the frequency of alleles in populations of organisms from generation to generation.</span>
Answer:: Solar energy absorbed at Earth's surface is radiated back into the atmosphere as heat. As the heat makes its way through the atmosphere and back out to space, greenhouse gases absorb much of it. ... They radiate the heat back to the Earth's surface, to another greenhouse gas molecule, or out to space.
Explanation:
Theory of adaptation is valid because scientist can see facts that supported the theory. Adaptation makes organism survive especially in this rapid changing world. For instance, parts of human anatomy like appendix and tail bone were still present in humans but are no longer functional.
