Which characteristic best represents an adaptation of finches for living on the Galápagos Islands?
O A. The different species that live there
O B. Having a beak for getting food
C. The different shapes of beaks
D. Having wings with feathers

Use the drop-down menu to match the following definitions to the corresponding terms. the total variety of organisms that live in the biosphere a group of organisms that breed and produce offspring that can breed all of the biotic and abiotic factors in an area

Some birds look for food near cattle and other livestock. the movement of the cattle churns up the ground, making insects available to the birds. the cattle appear to be unaffected by the presence of the birds. what kind of relationship exists between the birds and the cattle? o a. parasitism o b. commensalism o c. predation o d. mutualism

Which two criteria must be met before scientist can use radiocarbon dating? explain your answer