Question

select the correct answer from each drop - down menu.
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
this is an example of
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Explanation:

• For the hummingbird example: Adaptive radiation is when a single ancestral species diversifies into many species to exploit different ecological niches. Hummingbirds with different - shaped beaks evolving to drink from certain flowers is a classic case of adaptive radiation as they are evolving different traits to access different food sources (niches) within their ecosystem.
• For the cuckoo example: Co - evolution is the reciprocal evolutionary change in two or more species. The cuckoo laying eggs similar to the host bird's eggs and the host bird potentially evolving better egg - recognition (a form of an arms - race) is co - evolution. The cuckoo's “egg - mimicry” trait and the host bird's response (if any, like better discrimination) are evolving in relation to each other.

Answer:

• For “Some species of hummingbirds...”: adaptive radiation.
• For “Cuckoos lay eggs in the nests...”: coevolution.