G4SCIENCE - E C O S Y S T E M

What is the simplest level of organization within an ecosystem?

• community
• population
• organism
• biome

A group of ecosystems is called a ______

• community
• population
• organism
• biome

Which of the following best describes a community within an ecosystem?

• A single species in an area
• All living and non-living things in an area
• All the decomposers in an area
• Different populations of species in an area

Which level includes both biotic and abiotic factors in an area?

• community
• population
• ecosystem
• organism

A group of organisms of the same species living in an area is known as:

• community
• population
• ecosystem
• organism

Consists of all populations of different species or kind living in an area

• community
• population
• ecosystem
• organism

Which of the following is true about biomes?

• They consist only of non-living components.
• They are smaller than an ecosystem.
• They consist of groups of ecosystems.
• They only include one type of species.

Which of the following is an example of a biotic factor?

• water
• soil
• light
• frog

Which of the following pairs best represents the relationship between biotic and abiotic factors?

• Frog and water
• Water and soil
• Light and soil
• Frog and butterfly

In an ecosystem, the term "community" includes:

• Only the abiotic factors
• Only the biotic factors.
• Both biotic and abiotic factors
• Neither biotic nor abiotic factors