Answer:
there are 4 major classes of biological macromolecules
Both a and b. Protists can be heterotrophic (organisms that get their nutrition from complex substances) or autotrophic (organisms that make their own nutritional substances).
Answer:
it's the last one
Explanation:
since you don't want to get yourself or the other person sick or infected.
Reproduction rate and population size helps determine how fast the mutation is passed within a population. Also if it is favorable to species it helps determine if it is passed and unfavorable mutations tend to die off. Think about for example if one species has a favorable environment gene then it's going to have a higher chance or survival and reproduction than the other species. Also genes help determine if mutation is passed on.
Answer:
somatic cell contains 2 allele for every gene, with one provided by each parent of an organism
