Ecosystem Unit Test Review questions-7th grade

Front

What is the law of conservation of energy?

Back

The law of conservation of energy states that energy cannot be created or destroyed, only transformed from one form to another.

Front

What is predation?

Back

Predation is a symbiotic relationship where one organism (the predator) hunts and eats another organism (the prey).

Front

What do the arrows in a food chain represent?

Back

The arrows in a food chain show the direction in which energy flows between organisms.

Front

What happens to the ecosystem if a key species, like frogs, goes extinct?

Back

If frogs go extinct, their predators may decrease due to lack of food, while their prey may increase due to reduced predation.

Front

What is an abiotic factor?

Back

An abiotic factor is a non-living component of an ecosystem, such as temperature, water, and sunlight.

Front

What is a biotic factor?

Back

A biotic factor is a living component of an ecosystem, such as plants, animals, and microorganisms.

Front

Define mutualism.

Back

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

Front

Define commensalism.

Back

Commensalism is a symbiotic relationship where one organism benefits and the other is neither helped nor harmed.

Front

What is parasitism?

Back

Parasitism is a symbiotic relationship where one organism benefits at the expense of another.

Front

What is a food web?

Back

A food web is a complex network of feeding relationships among various organisms in an ecosystem.