I think B is the answer The Clean Air Act That prevented air pollution and protected the ozone layer as well as promote public health. This act gave Enviromen. Protection Agency the power to take effective action fighting environmental air pollution
Explanation:
Membrane proteins perform a variety of functions vital to the survival of organisms: Membrane receptor proteins relay signals between the cell's internal and external environments. Transport proteins move molecules and ions across the membrane. ... Cell adhesion molecules allow cells to identify each other and interact.
Answer:
using large amounts of natural resources
Explanation:
Carrying capacity of the environment can be defined as the optimal (maximum acceptable) level of use that an area can receive with a high level of satisfaction for users (visitors, researchers, employees) and minimal negative effects on resources. To some extent, the carrying capacity of the environment can be increased through agriculture, animal taming and the use of language. However, as a requirement to increase the carrying capacity of the environment is to engage in activity that does not adversely affect the area's resources, it is not possible to increase the carrying capacity of the environment by using large amounts of natural resources.