Ecology Review

Front

What do scientists consider when measuring biodiversity in a habitat?

Back

all of the organisms

Front

What is the logical sequence with respect to organisms becoming extinct?

Back

threatened --> endangered --> extinct

Front

If primary consumers in a food web decrease what might happen?

Back

producers might increase, or the secondary consumers might decrease due to lack of food

Front

Why do new communities replace older communities in an ecosystem?

Back

abiotic factors in a habitat change

Front

If populations are given all the resources needed to survive, what might happen?

Back

They would experience exponential growth.

Front

What do living organisms depend on from their environment?

Back

abiotic

Front

What processes are involved in the water cycle?

Back

respiration, transpiration, evaporation, and condensation

Front

What might happen if decomposers such as bacteria and fungus are destroyed by pesticides and other chemicals?

Back

Nutrients will not be returned to the soil.

Front

What factors are NOT necessary for the stability of an ecosystem? Options: a constant source of energy, producers to incorporate solar energy into organic molecules, cycling of materials between organisms and their environment, an equal number of producers and consumers

Back

an equal number of producers and consumers

Front

What is the diagram that shows how energy is passed from producers to consumers?

Back

food chain