In any given population, certain individuals are more able than others to adjust to environmental changes. Some of these changes are temperature, food supply, pollution, and A.
increase in offspring.
B.
change of habitat.
C.
decrease of predators.
D.
loss of population group.

What are four key elements of the study of economics?

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

The ultimate purpose of respiration: a. inhale 02 and exhale co2 b. place oxygen in the lungs c. place oxygen in the blood d. deliver oxygen to every blood cell