Answer;
A) island forms and mainland forms descended from common ancestors.
Explanation;
-Islands tend to host very distinct but limited sets or species; on a given island a spectacular collection of one related group of species would be present and thriving, but many entire families or even higher taxa would be completely absent.
-All the species on the islands and the nearest continent are closely related to one another, however, each species had a set of adaptations that suits it for a particular environment. This means that the island forms and mainland forms descended from common ancestors.
Answer:
B
Explanation:
Crossing over is the process involved during meiosis of two chromosomes sharing genetic information with each other from each parent. This happens so the two daughter cells or sister chromatids have a variety of genetic information and so they are not completely identical. This leads to genetic diversity or variation.
Well, first off we would have more unlimited power supply and we would be able to get it easier because, the sun can produce harmful RB rays, all we would need to do is process it through a machine that can make it into a nuclear radiation rod that could be put into every electrical thing on this planet. We can also kill every one with the fire of a missile, and we could wipe the electrical currents of a nation out in one go.
orth American Free Trade Agreement (NAFTA) was negotiated among the United States, Canada and Mexico for the purpose of removing barriers to the exchange of goods and services among the...
Whether NAFTA has been successful is a matter of perspective. Many Americans blame the agreement for encouraging American manufacturers to relocate their facilities to Mexico, where labor costs are lower and environmental standards generally weaker. In addition, the hoped-for improvement in the standard of living among many Mexicans may have materialized, but it remains substantially lower than than in the United States. Consequently, the hoped-for decrease in illegal immigration from Mexico to the United States hasn't occurred.
