Without genetic variation, a population cannot evolve in response to changing environmental variables and, as a result, may face an increased risk of extinction. For example, if a population is exposed to a new disease, selection will act on genes for resistance to the disease if they exist in the population.
Answer:
B
Explanation:
I hope this helps. Sorry if i'm wrong.
Answer:
the first option is correct. two types of weathering are physical / mechanical weathering and chemical weathering.
Explanation:
A Beaker, Hot Plate, Bunson Burner,
Answer:
The carbon cycle is nature's way of reusing carbon atoms, which travel from the atmosphere into organisms in the Earth and then back into the atmosphere over and over again. Most carbon is stored in rocks and sediments, while the rest is stored in the ocean, atmosphere, and living organisms.
