Some species of hummingbirds have different shapes of beaks that evolved to allow them to drink from certain flowers. The flower species have evolved to produce nectar that is tasty for the hummingbirds. This example is a type of . Cuckoos lay eggs in the nests of other birds. The cuckoo lays eggs identical to the eggs of the host species, so the other bird takes care of it. This is an example of .

mutualism and adaptive radiation

Explanation:

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answer:

convection currents in the magma drive plate tectonics. heat generated from the radioactive decay of elements deep in the interior of the earth creates magma (molten rock) in the aesthenosphere. the aesthenosphere (70 ~ 250 km) is part of the mantle, the middle sphere of the earth that extends to 2900 km.