<span>Looking at the two species' DNA would be a good place to start. If there are a number of similarities in their genotypes, then there would be a good chance that the two would also share some type of a common ancestor. This would be evidence that there was some type of selection that took place that necessitated two different species that shared a number of traits and features.</span>
The 4 classes of biological macromolecules are carbohydrates, lipids, proteins and nucleic acids.
Answer:
include the brain and spinal cord
Explanation:
Answer:
b. Mutualistic
Explanation:
The symbiotic relationships are defined by the interacition between two species, In the mutualistic symbiotic relationship both of the organisms get benefits from the interaction. in the case of the normal flora in the skin as they compete with pathogens for space and food they prevent this patogens to go in the human skin, and they get food from the skin, so as they give protecttion and obtain food, both of the organisms are getting benefits and because of this:
The relationship between you and your normal flora is an example of a mutualistic symbiotic relationship.
Small populations
In small population sizes, inbreeding, or mating between individuals with similar genetic makeup, is more likely to occur, thus perpetuating more common alleles to the point of fixation, thus decreasing genetic diversity.
