Answer:
Because natural selection acts directly only on phenotypes, more genetic variation within a population usually enables more phenotypic variation. Some new alleles increase an organism's ability to survive and reproduce, which then ensures the survival of the allele in the population.
Explanation:
hope this is right...
Answer: The difference between them are that Biotic things are living things and abiotic is non living. The biotic and abiotic factors help eachother maintain the ecosystem .
Because the only difference between the potted plants is the type of seed, Michelle is most likely testing- D. The growth rate of different types of bean seed.
Volcanic eruptions cause magma to rise through cracks or weaknesses in the Earth's crust and when the pressure is released magma explodes causing a volcanic explosion. Hope this helps! :)
