Question

select the tropical rain forest ecosystem.
this ecosystem has:
year - round rain and warm temperatures
soil that is poor in nutrients
many different types of organisms
this ecosystem has:
long, cold winters and short, cold summers
mostly small plants
soil that is frozen year - round
this ecosystem has:
a small amount of rain
dry, thin soil
many different types of organisms

Explanation:

The first ecosystem description matches a tropical rain forest. Tropical rain forests have year - round rain and warm temperatures. The high rainfall leads to leaching of nutrients from the soil, making it poor in nutrients. Also, they are known for high biodiversity (many different types of organisms). The second ecosystem (long, cold winters, frozen soil) is a tundra. The third (small amount of rain, dry soil) is a desert.

Answer:

The first ecosystem (with year - round rain and warm temperatures, poor - nutrient soil, many organisms) is the tropical rain forest ecosystem.