HELP NO JOKES PLEASE Background1
in a certain environment there exists a population of mice; its gene pool has three variations:
black, brown, and white.

Directions
Using the diagram, explain what type of natural selection is occurring in the population.
Explain what could happen in the environment that would lead to this type of selection among
the population.

Coquina, a type of limestone, forms from shell fragments that settle on the ocean floor. what type of rock is coquina?

How do you know that the plant cells in these two images have different jobs, or functions? a. because all plant cells serve different functions b. because they are two different colors c. because their dna are different d. because their structures are different

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.