Answer: Population, Community
Ecology is the study of environmental interactions at the following levels, from least inclusive: population to most inclusive: community
Explanation:
Starting from the total number of each single specie breeding freely together (population) to the entire group of plants, animals and microorganisms relating with the environment (community) in a given area; ecology seeks to understand the relationship between living things and their environment.
They are both witches: it’s either WW or ww
Yes. Brain cells need oxygen to survive.
Answer:
A
Explanation:
Cholesterol is not an energy source in the body. It is used to make Vitamin D, and hormones such as cortisol, estrogen, and progesterone, and digestive fluids like bile.
Cholesterol increases membrane fluidity, especially at lower temperatures when the cell membrane would freeze. This is because the molecule intercalates between the fatty acid chains of the lipid layer of the cell membrane. This prevents the lipids from packing tightly together which would cause the membrane to be rigid. However, it does decrease membrane fluidity at high temperatures preventing the cell membrane from melting at temperature that is higher than its melting point.
Answer:
the process whereby organisms better adapted to their environment tend to survive and produce more offspring. The theory of its action was first fully expounded by Charles Darwin and is now believed to be the main process that brings about evolution.
Explanation: