You have learned that competition can have big effects on organisms.
Write a paragraph in which you describe a situation in which competition, through the process of
natural selection, leads to a change in the behavior or physical appearance of an organism.

Which locations on the map are low-pressure areas? a b c d e

Wich level of organization includes all the other levels or organizations

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.