Explanation:
Most of Earth's carbon is stored in rocks and sediments.
Answer:
A) There will be less genetic variation from recombination of risk of not adapting quickly to environmental changes
Explanation:
Natural selection: It is the process of adapting a species by a natural selection in the environment by the selection to change in re productivity in geno-type. It is processed in which the genes are selected and preserved for the future. These genes are those which survival chances are more and this selection of generation to generation has been multiplied. The genetic frequency the same generation to generation. The mutation is another that leads to a change in the generation that takes a population and occurs at a very low cost.
Answer:
a. Species A survived because of its widespread range including some areas that were not as affected by mass extinction.
Explanation:
The species distribution might confer extinction resistance during massive extinction events. One of the most important reasons for a species -or any other taxonomic group- to survive massive extinction is its wide distribution area.
The broad geographical range of a group -as Species A in the example- enhances the survival chances during mass extinctions. When the event occurs, it severely affects most individuals of a certain area. If the species is restricted to that area, then the species will probably disappear, no matter the number of individuals living there.
But if the species is widely distributed, there are more survival chances. The extinction event will only affect a few regions, but not all of them, meaning that some of the individuals of the species will be able to survive.
Probably as only a few individuals of species A got to survive, they must have suffered the effects of genetic drift after the disaster, causing a reduction in genetic variability.
the layer on the top. the layer with the most minerals.
