Food Web
A model that shows feeding relationships between organisms in an ecosystem.
What is a food web?
Water cycle.
What is a model that describes how water molecules move among Earth's ecosystems and atmosphere?
An organism that gets energy and matter by eating or absorbing other organisms as food.
What is a consumer?
Producers.
What is an organism that captures energy and matter from its surroundings to produce sugars and other molecules?
A molecule used to store energy.
What is a carbohydrate?
Food Chain
What is an individual path in a food web?
A model that describes how carbon-based molecules move among Earth's ecosystems and atmosphere.
What is the carbon cycle?
Decomposer.
What is a kind of consumer that uses the wastes or dead remains of other organisms as a source of energy and matter?
A cell structure that uses the sun's energy to make sugar through the process of photosynthesis.
Biomass.
What is the combined mass of the bodies of organisms, which collectively represents stored energy?
A food web interaction where one population directly affects the abundance of another.
What is a direct effect?
Nitrogen cycle.
What is a model that describes how nitrogen-based molecules move among Earth's ecosystems and atmosphere?
What is cellular respiration?
Photosynthesis.
What is the process of using energy from the sun and matter from the environment to produce sugars that store energy in chemical bonds?
The structure in cells that convert energy in sugar molecules into usable energy.
What is the mitochondria?
Indirect Effect
The re-planting of forests that have been cut down.
What is reforestation?
Fat.
What is a molecule that is used to store energy in the form of oils and is important in forming cells?
A green pigment that is important in photosynthesis.
What is chlorophyll?
Matter.
What is anything that has mass and volume?
A model that shows how much energy is transferred from one stage to the next in a food chain.
What is the trophic pyramid?
Law of conservation of matter.
What is the scientific law that states the amount of matter in a closed system stays the same, although the forms of that matter may change?
A type of molecule that makes up much of an organism's structure and helps it function
What is protein?
Cellulose.
What is the material that forms the rigid walls and support for plant cells?
A material that is made from biomass and releases energy when it is burned.
What is biofuel?