Creatures that are poorly suited to the environment do not generally weaken the entire population because

A. The population protects its own

B. They often die before they can reproduce

C. All populations have some weak members

D. Populations have more weak members than strong ones

Many animals cannot sweat to maintain a stable body temperature. what is one other way animals can cool down?

This is a typical grassland food web. it is also a small picture of an important cycle on earth: the carbon cycle. describe how the carbon gets into this food web. a) bacteria and fungi, the decomposers, recycle carbon from dead organisms. b) carbon is found in the grass and is passed from one level to the next in this food web. eliminate c) all living things give off carbon dioxide as a by-product of respiration and it is released into the atmosphere. d) plants use carbon dioxide as a reactant in photosynthesis, to make usable chemical energy in the form of a sugar.

Hemoglobin is a proton that carries oxygen around the body what is hemoglobin made from