Ecosystems

specific materials (matter) in food that organisms need to live

• nutrients

• requirements

• absorb

• ecosystem

to act or operate normally

• activity

• function

• interact

• operation

very tiny single-celled organisms

• fungus

• organism

• bacteria

• protists

the end of or the dying out of a type of organism

• extermination

• obliteration

• annihilation

• extinction

a community of organisms and their physical environment

• tropical

• ecosystem

• population

• function

to soak up or take in

• engross

• occupy

• consume

• absorb

ready to be used

• available

• convenient

• ready

• prepared

two things influence or act on each other

• friendly

• available

• interact

• population

any living thing

• person

• organism

• fungus

• bacteria

people who study science and use the knowledge in their work

• photographer

• meteorologist

• scientist

• teacher