Hurricane Irma devastated many islands in the Caribbean in 2017. To escape, many birds tried to fly out and around the unusually large hurricane (400 miles wide at its peak). Which example provides a description of directional selection as a result of the hurricane?

The gene that causes sickle-cell disease is present in a higher percentage of residents of sub-saharan africa than among those of african descent living in the united states. even though this gene causes sickle-cell disease, it also provides some protection from malaria, a serious disease that is widespread in sub-saharan africa but absent in the united states. discuss an evolutionary process that could account for the different percentages of the sickle-cell gene among residents of the two regions.

What is the relationship between absorbance of light and the rate of photosynthesis?

Identify the terms using the following picture. principle of dominance item 1 can be described as the . item 2 can be described as the . the "p" represents from one parent.