The principle of competitive exclusion states that two species cannot 

Rank the following biomes in order of decreasing annual precipitation amounts, beginning with the highest precipitation at the top.

When a population arrives at the point where its size remains stable, it has reached the carrying capacity of the environment.

Use the Hardy-Weinberg equation to calculate heterozygous individuals. p + q = 1 p2 + 2pq + q2 = 1 In a species of rodent, white coat color is recessive to the dominant brown color. In a population of 100 individuals, 16 are white and 84 are brown. Of the 84 brown ones, how many are expected to be heterozygous (2pq)?

Organisms can display explosive growth called _______ when resources are abundant and there is no competition. 

Organisms produced as a result of mitosis exhibit a great deal of genetic variation. 

For natural selection to occur, there must be some preexisting genetic variation in a population. Natural selection does not create the variation. Instead, it impacts individuals differently based on their genotype.

In the process of meiosis, several mechanisms shuffle the genetic material, thereby increasing genetic diversity.

Human cells contain two copies of every chromosome, one from each parent.  These two copies of the same chromosome are called homologous chromosomes.

What are abiotic components?