Types of animals
Consumer that only eat animals.
What is a carnivore?
Rain, snow, sleet, and hail.
What is precipitation?
A series of events in which one organism eats another and obtains energy.
What is food chain?
Human activities also affect the levels of carbon and oxygen in the atmosphere.
What is human impact?
Billions of people live on Earth, and they all need food.
What is agriculture?
Consumers that eat only plants.
What is a herbivore?
The process by which molecules of liquid water absorb energy and change to gas.
What is evaporation?
Consists of many overlapping food chains in a ecosystem.
What is food web?
The advance of desert-like conditions in an area once fertile.
What is desertification?
They kill insects pests and damage crops.
What are insecticides?
Consumers that eat both plants and animals.
What is an omnivore?
The process by which a gas changes to a liquid.
What is condensation?
Break down biotic wastes and dead organisms and return raw materials to the ecosystem.
What is a decomposer?
The process of changing free nitrogen into a usable form of nitrogen.
What is nitrogen fixation?
They may affect the balance in an ecosystem and thereby change the ecosystem.
What is human activities?
An organism that obtains energy by feeding on other organisms.
What is a consumer?
Producers release oxygen as a result of photosynthesis.
What is a oxygen cycle?
A carnivore that feeds on the bodies of dead organisms.
What is a scavenger?
The processes of evaporation, condensation, and precipitation.
What is the water cycle?
It rises higher in the atmosphere, and it cools down during the process of condensation.
What is water vapor?
An organism that can make its own food.
What is a producer?
Most producers take in carbon dioxide gas from the air during food-making or photosynthesis.
What is a carbon cycle?
A diagram that shows the amount of energy that moves from one feeding level to another in a food web.
What is an energy pyramid?
The most energy that is available at the pyramid.
What is producer level?
Nitrogen moves from the air into the soil, into living things, and back into the air or soil.
What is nitrogen cycle?