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.
Old-growth redwood forest in western North America. Redwoods are the tallest trees in the world, wit
Distributions of two barnacle species within the intertidal zone
The Saltwater Crocodile is the largest species of crocodile in the world.
Spotted hyena cubs in Limpopo, South Africa.
Amsterdam Albatross - Adult in flight, showing dark plumage typical of the species.
Barrier Islands