Question

The Geospiza fortis, or medium ground finch, live on the Galapagos Islands.

Although the medium ground finch normally eats small, soft seeds, a severe drought in the 1970s reduced the supply of these seeds. As a result, finches with slightly larger beaks, who could eat larger and harder seeds, were naturally selected over finches with smaller beaks. After a few generations, whole populations of these finches developed beaks that are ten percent larger than they were before the drought.

This gradual change in beak size over time is known as _______.
A.
evaporation
B.
evolution
C.
extinction
D.
regeneration

Answer 1

Courtesy: National Human Genome Research Institute

Which of the following sentences best describes the above picture?

A.

a multicellular organism

B.

cells of a multicellular organism

C.

a single-celled organism

D.

a group of single-celled organisms

Step-by-step explanation:

Answer 2

the answer is b. evolution