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LIVING THINGS

Across
What early humans didn't need but modern humans need to live.
Process that requires one organism to produce
Animals that don't make there own food
Process that requires two parents to produce organism
Process of taking inn food and breaking it down
Theory that non-living things could produce living things
Important in cells, what some foods are high in
The action of breathing
Living things taking in food is called
Two scientists that showed what it was like millions of years ago
Change in the environment that causes a response
Can have one or multiple. All organisms are made up of this
Total of all the chemical activities in an organism
Down
Struggle that occurs when food, water, and other raw materials are scarce
Ability to maintain a constant internal environment
When an organism has more then one cell
What all organisms need to live and to drink
Happens as a result of stimulus
Getting rid of waste material
Disproved spontaneous generation
Organisms that make there own food
When an organism only has one cell
Gained by proteins and carbohydrates
A type of growth where it is slower
What all organisms take in