Tropical Rain Forests Have Many Species That Are Found in Great

Tropical rain forests have many species that are found in great abundance.A study in the Brazilian rain forest found 487 tree species growing on a single hectare (2.5 acres) .In the U.S.and Canada together,there are only 700 species of trees on millions of acres.In one park in a Peruvian rain forest,scientists have identified over 1,300 species of butterflies,while in all of Europe there are approximately 320 butterfly species.These findings suggest that

A) rain forests are biologically less diverse than other ecosystems on Earth.
B) the number of tree species and butterfly species are about the same throughout the ecosystems of the world.
C) rain forests are biologically more diverse than other ecosystems.
D) as many as 400 species a day are lost due to human activity.
E) rain forests do not have any type of value to humans.