Answer: Prey for the rabbits would decrease greatly; there would be less food for the frogs and voles, so their populations would decrease. This means less food for the foxes and hawks.
Cell Membrane- <span>Cell boundary (made of lipids), controls movement of materials in and out of the cell. (proteins), recognizes signals.
Cytoplasm-</span><span>Jelly-like material holding organelles in place. (Mostly made of water)
Nucleus-</span><span>Control center of the cell. Protects the DNA</span>
Genetic variation in a population allows for phenotypic variation, meaning that different traits exist in the same population. When the environment changes, the members of the population are tested by natural selection with regards to how well adapted their specific traits are to the new environment. If the traits they have do not suit their environment, this results in reduced survival and fitness, leading to less of that trait in the population. However, if the traits they have are adapted to the environment, they become naturally selected for with better survivability and fitness (leading to a higher frequency of that trait in the population). Thus, evolution has occurred.
Answer:
D. Lung cancer is the leading cause of cancer deaths.
Explanation:
due to smoking, and second hand smoke
Aldosterone from the adrenal gland is the answer