Evolution Test What observations did Charles Darwin make about finches in the Galápagos Islands?
Identical species of finches lived in South America.
Various species of finches lived on just one of the islands.
The same species of finches lived on all the islands.
Different species of finches lived on different islands.

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.

Which statement about inheritance is true? o girls get most of their traits from their moms, boys get most of their traits from their dads. o male offspring will always have an x-linked genetic disease if the mom is a carrier o fathers always determine the gender of the offspring in humans. o males never have y chromosomes.

Which of the following types of rock would most likely contain a fossil? slate granite lava rock limestone