Ecosystem

What is a community?

• A habitat with abiotic factors

• A very small habitat

• All the abiotic factors in a specific area

• All the different populations that live together in an area

The place where an animal lives and gets what it needs to

survive is called_______.

• A community

• A Habitat

• An environment

• A niche

The first organism in a food chain is always a__________.

• consumer

• carnivore

• producer

• herbivore

An ecosystem thrives with biotic and abiotic components. An example of an abiotic part of an ecosystem is ______________.

• Bacteria

• Fungus

• Water

• Decaying plants

Water, soil, minerals, nitrogen and energy are all essential ______ components of an ecosystem.

• abiotic

• materials

• biotic

• environmental

A lion hunts and eats an antelope. In this case, the lion is the:

• Prey

• Consumer

• Parasite

• Producer

Trophic levels are represented by

• squares

• circles

• pyramids

• lines

In the energy pyramid here, how much of the energy in each level gets lost as heat or used by the organism for survival?

• 80%

• 90%

• 10%

• 20%

The approximate amount of energy that is transferred between each trophic level is:

• It totally depends on the ecosystem.

• 90%

• 0.1%

• 10%