1.What is a population pyramid/age-structure graph and what can we learn by looking at them?

What would happen to the nutrients in an ecosystem if decomposers, such as bacteria, didn’t exist there?

Match each description to the appropriate biome. tropical savanna desert tropical rain forest taiga tundra has sparse vegetation and very cold temperatures located near the equator and contains trees that form dense canopy layers is very hot and dry, and has plants that need little water has cold winters, heavy snowfall and is dominated by conifers has warm temperatures and is dominated by grasses

Adigestive system that is a series of tubes beginning at the mouth and ending at the anus is a digestive system.