Living Systems - Investigation 2
Terms in this set (17)
A chemical in food that helps keep an organism alive and active.
A waste gas produced during cellular respiration. Plants use it during photosynthesis to make food.
A process used by plants and algae to make sugar (food) out of light, carbon dioxide, and water.
A molecule that absorbs red & blue light & reflects green light.
describes levels in a feeding relationship involving producers, consumers, and decomposers
The feeding relationships among all the organisms in an ecosystem. Arrows show the flow of matter and energy from one organism to another.
A carnivore at the top of the food chain that feeds on other carnivores.
Eats primary consumers...they can be carnivores AND/OR omnivores.
A living organism that eats producers (they are also called herbivores).
An organism, such as a plant or algae, that makes its own food.
The organs and structures that digest food. The digestive system includes the teeth, mouth, esophagus, stomach, small intestine, large intestine & colon.
The tube connecting the mouth and the stomach
The organ where food is reduced to mush by acid and muscle activity.
The part of the digestive system between the stomach and large intestine, where nutrients are absorbed from digested food.
The part of the digestive system between the small intestine & the rectum where water is removed from the solid waste
The large intestine where solid waste is compacted in preparation for elimination.
A waste gas produced by plants during photosynthesis. It is used by all plants and animals during cellular respiration.
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