AP BIOLOGY

Detailed explanation-1: -Tropical rain forest contains varied ecological niches from forest floor to the canopy. Hence tropical rain forests are the most species-rich biome on Earth.

Detailed explanation-2: -Tropical rainforests are unique in the high levels of biodiversity they exhibit. Around 40% to 75% of all biotic species are indigenous to the rainforests. Rainforests are home to half of all the living animal and plant species on the planet. Two-thirds of all flowering plants can be found in rainforests.

Detailed explanation-3: -Tropical rainforests are the most biologically diverse terrestrial ecosystems in the world. The Amazon rainforest is the world’s largest tropical rainforest. It is home to around 40, 000 plant species, nearly 1, 300 bird species, 3, 000 types of fish, 427 species of mammals, and 2.5 million different insects.

Detailed explanation-4: -Rainforests receive the most rain of all of the biomes in a year! A typical year sees 2, 000 to 10, 000 millimeters (79 to 394 inches) of rain per year.