Biology Unit 3 Ecology Test 2024-2025

Front

What percent of energy is transferred from one trophic level to the next in an energy pyramid?

Back

10%

Front

What role do bacteria play in the nitrogen cycle?

Back

Bacteria take nitrogen in the atmosphere into the soil and convert it to a form usable by plants.

Front

What are the nonliving factors in an ecosystem called?

Back

Abiotic factors

Front

What term describes the variety of living organisms in an ecosystem?

Back

Biodiversity

Front

What are organisms that have major impacts on the ecosystem they live in called?

Back

Keystone species

Front

What is the process by which plants convert sunlight into energy?

Back

Photosynthesis

Front

What term refers to the maximum population size that an environment can sustain?

Back

Carrying capacity

Front

What is the term for the role and position a species has in its environment?

Back

Niche

Front

What is the term for a species that is not native to a particular ecosystem and causes harm?

Back

Invasive species

Front

What is the term for the interactions between living organisms and their environment?

Back

Ecology