Answer:
Natural selection and selective breeding can both cause changes in animals and plants. The difference between the two is that natural selection happens naturally, but selective breeding only occurs when humans intervene. For this reason selective breeding is sometimes called artificial selection.
Explanation:
Restoring farmlands to wetlands consists of a lot of pro and cons. Firstly, they should consider that wetlands will greatly filter carbon dioxide from the atmosphere and reduce greenhouse gases. Wetlands restoration would probably affect the lives of the nearby human residents negatively. This is due to the fact that wetlands provides an optimal habitat to wild animals especially dangerous carnivores like alligators. The regeneration project will expand the habitats of animals, and clean the water system but it will remove the nutrients from the soil.
C.Natural Selection would be the answer
The skin is an example of a non-specific defense.
For example, bacteria or diseases have trouble entering a healthy person's skin because it is formed by closely packed cells with multiple layers and a substance called keratin that protects is.
On the other hand, the immune system is a specific defense mechanism.
When bacteria is able to enter the body in cases of fever for example, the immune system is activate and sends out protector cells such as the white blood cells to combat infection.
Choice C is most likely to be the right answer!
