If later is was 100 million years ago, later b would be 200 million years ago (because it is 100millions years prior to a). And therefore layer c must b 300 million years ago.
we will run out of resources an population will decrease
Answer:
abiotic constituents, minerals, climate, soil, water, sunlight, and all other nonliving elements, and its biotic constituents,
Explanation:
Commenting only to the small part of the terms it seems you had for the concept map...
Amino acids are the base of proteins. They are organic compounds with an amine group and a carboxyl group.
Carbohydrates are polymers of monosaccharides, or simple sugars.
Answer:speciation
Explanation: Speciation is the evolutionary process by which populations evolve to become distinct species. There are four geographic modes of speciation in nature, based on the extent to which speciating populations are isolated from one another these are allopatric, peripatric, parapatric, and sympatric. Speciation may also be induced artificially, through animal husbandry, agriculture, or laboratory experiments.
