Ecosystems Review

What is a joule?

• unit for measuring energy
• unit for measuring time
• unit for measuring heat 
• unit for measuring temperature

What is a decomposer?

• living elements of the ecocystem
• organisms that break down dead and decaying material
• unit for measuring energy
• animals that eat other animals

What is the process of ammonification?

• when ammonium is converted by bacteria to nitrites
• when nitrogen from waste is turned into ammonium

What is biodiversity?

• living and nonliving things in an environment
• the transfer of energy
• variety of life in the world and the measure of different organisms
• the circle of life

Where does all energy come from?

• animals
• food
• sun
• people

We get chemical energy from what?

• animals
• sun 
• food
• people

What can we use to demonstrate how energy and matter is transferred in the ecosystem?

• graphs
• food chains and webs
• books
• the sky

What is an ecosystem?

• a location in space
• biomass
• food chain
• living and nonliving things that make up our environment

What 2 elements are cycled in and out of our physical environment?

• carbon and nitrogen
• amino acids and protiens
• water and candy
• people and the sun

Which element is not part of the nitrogen cycle?

• nitrogen fixing
• denitrification
• ammonification
• temperature of the sun