Biology Unit 3 Ecology Test 2024-2025

What are the living factors in an ecosystem

What are the nonliving factors in an ecosystem?

Biotic and abiotic factors can ​ (a)   one another and they both play important roles in the ​ (b)   of the ​ (c)  

The variety of living organisms in an ecosystem

Organisms that have major impacts on the ecosystem they live in

Keystone species help ​ (a)   biodiversity and directly affect the ​ (b)   that they live in. When they are removed biodiversity ​ (c)  

Autotrophs are ​ (a)   that obtain ​ (b)   from sunlight or chemicals.

Autotrophs use ​ photosynthesis and ​ (a)   to obtain their ​ (b)  

Consumers are also called ​ (a)   because they obtain ​ (b)   by eating other living or nonliving resources.

Classify the organism as heterotroph or autotroph