Aztec farmers learned thousands of years ago how

Aztec farmers learned thousands of years ago how to choose corn. They would very often cross two different types of corn to produce a variety that they wanted. This is an example of 1) cloning 2) adaptation competition 3) artificial selection 4) survival in

Charles Darwin

Darwin’s Finches

The reason for the existence of many species of finches on the different Galapagos Islands is (1) the abundance of available food (2) DNA mutations during mitosis that occur more often in birds (3) sexual reproduction (4) competition for resources

Everyone competes for limited resources Species adapt to different niches

The differences observed in the bird beaks are most likely due to (1) asexual reproduction of these finch species (2) the selection for different shaped beaks that best suit different niches e h t s i e h (3) the genetic recombination with c associated i. n s e A v i ! l R mitotic cell division e E r u B t M ea E r c M RE wengineering (4) the genetic of the DNA of each of these ay a species

Which two finches would compete the least for food? (1) small ground finch and large ground finch (2) large ground finch and sharp-billed ground finch (3) small tree finch and medium ground finch (4) vegetarian finch and small ground finch They have different niches!