Answer:
They are called alleles.
Explanation:
Different versions of a gene are called alleles. Alleles are described as either dominant or recessive depending on their associated traits.
Answer:
the answer to that question is
fungi
The factor given in the choices that will probably decrease population density would be C. forest fire. Normal rainfall is beneficial to the ecosystem to help grow the vegetation and in result, benefits the consumers. Predators decrease the population while birth rate can also increase population.