<span>A _ consists of all the genes, including the alleles for each gene, that are present in a population.</span>
Answer:
Heritable variations exist in each population.
Each species seems suited for its particular environment.
A population has more individuals than can be supported by the environment.
Explanation:
Earth is made out of a lot of different materials inclluding silicon, iron, nickel, aluminum and other metals. Of course, it's atmosphere is made out of gases including nitrogen oxygen CO2 and Carbon monoxide.
A or D... depending on which country you are talking about and if it is a developed or developing country...
the effects of overcrowding will definitely be negative...
sorry not much help!
