Q: In which process is nitrogen from the air put into a form that plants can use?
A: nitrogen fixation
Q: Some birds fly south before winter each year. This is an example of
A: migration
Q: What characteristic helps a rabbit survive in a winter environment?
A: camouflage
Q: According to Darwin's theory of evolution, the variations among finches that he observed in the Galapagos Islands resulted from
A:
natural selection.