Ecology Unit Practice Test

Front

What is the energy transfer efficiency from producers to herbivores in an ecosystem?

Back

Typically, only about 10% of the energy from producers (trophic level 1) is transferred to herbivores (trophic level 2).

Front

What is photosynthesis?

Back

Photosynthesis is the process by which green plants and some other organisms use sunlight to synthesize foods with the help of chlorophyll, removing carbon dioxide from the atmosphere.

Front

What is parasitism?

Back

Parasitism is a type of symbiotic relationship where one organism (the parasite) benefits at the expense of another organism (the host), often harming it.

Front

What is the role of herbivores in an ecosystem?

Back

Herbivores are primary consumers that eat plants (producers) and transfer energy to higher trophic levels.

Front

What is a food chain?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass as one organism eats another.

Front

What is a food web?

Back

A food web is a complex network of interconnected food chains in an ecosystem, showing how energy and nutrients flow between different organisms.

Front

What is competition in ecology?

Back

Competition occurs when two or more organisms vie for the same resources (like food, space, or light) in an ecosystem.

Front

What is mutualism?

Back

Mutualism is a symbiotic relationship where both organisms benefit from the interaction.

Front

What is the role of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil and supporting plant growth.

Front

What is cellular respiration?

Back

Cellular respiration is the process by which cells convert glucose and oxygen into energy, carbon dioxide, and water.