Answer:
a
Explanation:
an ecosystem is a self supporting unit that is made up of a living part(biotic factors) like plants and animals nd non living parts (abiotic factors) like water, soil, air
Answer:
B.) Can lead to new species that share common ancestors
Explanation:
Genetic drift and natural selection both lead to evolution. This describes the change of a species overtime to be better suited for their environments. In some cases, this leads to the creation of an entirely new species (speciation).
Please put the answer choices
An excess production of melanin. Melanin is a pick me to give skin its color.