Ecology Edulastic Test

Front

What is commensalism?

Back

A symbiotic relationship in which one species benefits while the other is neither helped nor harmed, such as a bird's nest in a tree.

Front

If the population of frogs decreases, what is likely to increase?

Back

Caterpillars, as they are part of the food web that relies on frogs.

Front

What are producers in an ecosystem?

Back

Organisms that create their own food, usually through photosynthesis.

Front

Which organism is most affected if hunting reduces the number of deer in the food web?

Back

Mountain lion, as it relies on deer as a food source.

Front

How does energy move in a food web?

Back

Energy moves from producers to apex predators.

Front

What is a food web?

Back

A complex network of feeding relationships among various organisms in an ecosystem.

Front

Define an apex predator.

Back

The top predator in a food chain that has no natural enemies.

Front

What role do herbivores play in an ecosystem?

Back

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

Front

What is the difference between a food chain and a food web?

Back

A food chain is a linear sequence of organisms through which nutrients and energy pass, while a food web is a complex network of interconnected food chains.

Front

What is the significance of decomposers in an ecosystem?

Back

Decomposers break down dead organic matter, recycling nutrients back into the soil.