non-living factors in an ecosystem are things that are not alive. like so rocks, water, air, soil and sunlight.
I think it is keystone. If they were not there the population of urchins would go up and the kelp would go down.
The answer would be B Xylem hoped i helped
Answer:
The fundamental law of inheritance.
Explanation:
He is responsible for our knowing that genes come in pairs and are inherited as units (alleles), one from each parent.
Amino acids are considered as the building blocks of proteins.
Proteins in the body consist of 20 different amino acids, some of which can be synthesized by the body itself.
Each unique protein is formed by the combination of these proteins in several ratios and sequences.
