The most grown crop in the US is corn, followed by soybeans and wheat.
Answer:
A and B should be the answer if you can pick two, but B is the answer.
two big R and two little r should be 50
Answer:
Atoms In The Mix
Explanation:
Water molecules are shown as H₂O. That is because water contains two hydrogen atoms and one oxygen atom. Carbon dioxide is a molecule that contains one carbon and two oxygen atoms.
Even a country in which the birthrate and death rate are equal can experience population growth if it also has immigration.
- In evolutionary time, migration will often quickly converge gene frequencies among populations. Migration is a powerful mechanism for balancing the gene frequencies of subpopulations in a species in the absence of selection. Gene frequencies will eventually equalize if the migration rate is larger than zero.
- Migration refers to the movement of people, groups, or populations. Migration facilitates gene flow, or the transfer of genes from one population to another, in terms of genetics. Migration—or, to be more precise, gene flow—alone will quickly bring the gene frequencies of the two populations together if they initially had distinct gene frequencies and if selection is not at work.
Therefore, immigration is the correct answer.
Learn more about immigration:
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