Organisms in the environment review

which of the following is an example of an abiotic factor.

• rose bush
• water
• grass
• rabbit

which of the following defines habitat?

• an area with only abiotic factors
• a large a area of land that is known for its climate and oranganisms
• a  small area in a habitat with food water and shelter for organisms to live 
• an area that that provides food,shelter and food and for organisms  and can contain many microhabitats.

To keep our ecosystem healthy, we must keep our?

• biodiversiety
• earth
• sun
• biodiversity

 What is a BIOME? 

• A biome is an entire community of living organisms in a single major area. 
• a biome is an entire community living species in a single major area
• a biome is an entire community of living organisms in a lot of major area
• A biome is and entire community of living organisms in a little bit of a major area

A drought has hit this grassland biome. How will this effect the rabbit population?

• The rabbits will increase in number.
• The rabbit population will stay the same.
• The rabbit population will decrease.
• The rabbit population will become extinct immediately.

Which option is biotic?

• Plants
• Air
• Water
• Energy

In this tundra food web, if grasses were removed what would happen to the sustainability of the ecosystem?

• There would be an overpopulation of arctic hares and lemmings.
• Polar bears would move to a new ecosystem
• The ecosystem would collapse because it lost its main producer
• Wildflowers would die out from the ecosystem

Which of the following is an example of a biotic  component of the environment?

• wind
• vegetation
• water
• temperature

Biodiversity refers to

• extinct species
• the variety of species on Earth
• nonrenewable resources
• the rate of species decline

Biotic factors of an ecosystem are:

• non-living
• plants
• living thing
• soil