Answer: To perform photosynthesis, plants need three things: carbon dioxide, water, and sunlight.
Answer: Diversity is needed in approaches to managing forest ecosystems, just as in the forest ecosystems themselves. It is now widely accepted that biodiversity is the measure of biological variety at many scales, from the gene to the ecosystem.
To prevent the backflow of blood during systole and diastole, Artries from the heart dont need valves since their blood pressure is already high enough to not allow backflow of blood, but since veins' blood pressure is lower, they need valves just so the blood doesn't seep back in into the heart again!
<h3><u>Answer;</u></h3>
Frequency of q would be increased
<h3><u>Explanation;</u></h3>
- The environment that has changed and the frequency of the<u> p allele </u>has gone down means that the frequency of q allele would go up, because the two frequencies are inversely proportional and their sum is constant.
- <em><u>According to Hardy Weinberg Principle, the gene or allele frequencies in a population will remain stable from generation to generation until acted on by an outside force.</u></em>
- <em><u>Allele frequencies in a population will not change from generation to generation, as far as factors of evolution such as natural selection, mutation, and migration are not taking place.</u></em>
