A scientist studied iguanas inhabiting a chain of small ocean islands. He discovered two species that live in different habitats and display different behaviors. His observations are listed in the table below.
observations of two species of lguanas
species A
spends most of its time in the ocean
is rarely found more than 10 meters from shore
eats algae
species B
spends most of its time on land
is found many meters inland from shore
eats cactus and other land plants
Which statement best describes these two species of iguanas?
(1) Both species evolved through the process of ecological succession.
(2) Each species occupies a different niche.
(3) The two species can interbreed.
(4) Species A is a scavenger and species B is a carnivore.