The most grown crop in the US is corn, followed by soybeans and wheat.
Answer:
C. Two non-functional copies of the retinoblastoma gene.
In this case, brown frogs increase and green frogs decrease, whereas natural selection would cause this change in allele frequency.
<h3>What is natural selection?</h3>
Natural selection is the main evolutionary force by which populations change (evolve) across time.
Natural selection leads to the change in the allele frequencies depending on the more adapted phenotypes in a given environment.
In conclusion, brown frogs increase and green frogs decrease, whereas Natural selection would cause this change in allele frequency.
Learn more about natural selection here:
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Electrons become excited in the reaction centre of the Photosystem during the first stage of photosynthesis.
