Question

Tropical rainforests have many species that are found in great abundance. A study in the Brazilian rainforest found 487 tree species growing on a single hectare (2.5 acres). In the US and Canada together, there are only 700 species of trees on millions of acres. In one park in a Peruvian rainforest, scientists have identified over 1300 species of butterflies, while in all of Europe there are approximately 320 butterfly species. These findings suggest that:
A. rainforests 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. rainforests are biologically more diverse than other ecosystems.
D. as many as 400 species a day are lost due to human activity.
E. rainforests do not have any type of value to humans.

Answer 1

C: rainforest are biologically more diverse than ecosystems.

Explanation: the reason why this is correct is because of the vast ratio of American and Europeans animal/plant species compared to Brazil alone. They have much more diversity hence having more biodiversity. The vast amount of plants and animals are superior to other countries.