More than one million years ago, a single species of finch migrated to the Galapagos from the mainland of Central or South America. From this one migrant species at least thirteen species of finch would eventually evolve. This process in which one species gives rise to multiple species that exploit different niches is called adaptive radiation. In describing the four different finch species we see here, we could also say that filling these varied niches would classify the birds as
A) generalists.
B) endemics.
C) specialists.
D) invasives.

Specialist

Explanation:

We could also refer to these finches as specialists. They are niche-specific; that is, they survive under narrow, unique circumstances. I got it wrong when i did it on usatestprep, Specialist was right.

one centimetre is equal to 0.01 metres

answer: ice crystals in air

the water from the water body or another source of water gets evaporated as water vapor as an effect of heat on water. these water vapor rises in the upper layers of the earth atmosphere under high atmospheric pressure. the atmospheric pressure of these water molecules starts to decrease due to the effect of cold air. the invisible water vapor condenses into visible water droplets and ice crystals.these ice crystals and water droplets being less denser than the surrounding air floats on air as clouds.