Answer:
Geographic isolation and reduction of gene flow are the main causes of speciation.
A very unique species might evolve on an island because the environment and living conditions are different and it will need to adapt to it. (e.g. island dwarfism)
Explanation:
Geographic isolation most often occurs with populations that are completely separated by a physical barrier, such as a mountain range, river, or desert. The separated populations adapt to their own unique environments, becoming so genetically different from one another that members of one population cannot breed with members of the other.
Answer:
four layers
Most rainforests are structured in four layers: emergent, canopy, understory, and forest floor.
Explanation:
Answer:
The answer is A. Tears are produced by the sebaceous glands.
Explanation:
The tear is an important component of the ocular system, whose function is the protection of the surface, especially the cornea; The tears, by the blinking of the eyes, move to the angle of the eyes, to continue through the tear duct to the nose. The tear glands are responsible for their production., Located in the superoexternal part of the orbit. They contain a lysoenzyme. also known as muramidase, which damage bacterial cells.
Answer:
Genotype of parent dog 1: FfBb
Genotype of parent dog 2: FfBb
Explanation:
