Photosynthesis
Animals get the carbon and energy they need by eating this.
What are plants?
Respiration uses this.
What is oxygen?
When humans burn fossil fuels carbon enters the atmosphere in this form.
What is carbon dioxide?
These two organisms are the main things that decompose organic matter.
What are fungi and bacteria?
The exchange of carbon between the environment and living things is known as this.
The exchange of carbon between the environment and living things is known as this.
During photosynthesis plants use carbon dioxide to make this.
What is Sugar?
Carbon returns to the environment when these molecules are broken down.
What are sugar molecules?
These are the two main substances burned in combustion.
What are wood and fossil fuels?
List two scavengers that contribute to decomposition.
coyotes, and vultures.
The basis of the carbon cycle when plants capture energy from the sun and change it into food.
photosynthesis
Plants get the carbon dioxide from this.
What is air?
These are the two byproducts of respiration.
What are carbon dioxide and water?
The chemical reaction gives off this.
What is heat?
True or False: All organisms decompose in the same way.
false
The process of burning a substance.
combustion
This is the main pigment used in photosynthesis.
What is chlorophyll?
Respiration uses food and oxygen to create this.
What is chemical energy?
These are the two reactants of combustion.
What are fuel and oxygen?
When fungi and bacteria break down organic matter these two substances are returned to the environment.
carbon dioxide and water
The breakdown of substances into simpler molecules
decomposition
The food that plants make through photosynthesis is in the form of this.
What is glucose?
Lightness or darkness is needed in respiration.(which one)
What is neither?
These are some additional chemicals that are formed during the combustion reactions.
What are CO (carbon monoxide), NO (nitric oxide), NO2 (nitrogen dioxide), SO2 (sulfur dioxide), soot, and ash?
There are ______stages of decomposition.
two
Exchange of oxygen and carbon dioxide between living cells and their environment is this.
respiration