The various Galpagos finch species
A) evolved in South America and flew to the Galpagos Islands.
B) evolved from a single ancestral species that flew to the Galpagos Islands.
C) all feed on the same diet in the Galpagos Islands.
D) are primarily different because of variations in the structure of their feet.
Question 2
Many of the 1.3 billion people who lack electricity live in rural regions where
A) nuclear energy is most useful.
B) hydroelectric energy is the best energy resource.
C) hydrogen fuel cells are most useful.
D) solar energy is most useful.
Comparison of small subunit rRNA gene sequences from three eukaryotes and three bacterial species
Insect species diversity on British host trees supports the area hypothesis.
Relationship between fruit radius and beak length in populations of native and introduced species of
In some species, dominant females have more surviving offspring that mature earlier indicating an ad