The condition or degree of an environmental factor that is favorable to growth and development
What is optimum
100
A colorless odorless gas in the atmosphere, it is released by animals and humans during respiration (breathing).
What is carbon dioxide
100
An organism, such as a plant or algae, that makes its own food.
What is producer
100
An organism that breaks down plant and animal material into simple chemicals. The chemicals cna be reused in the ecosystem.
What is decomposer
100
Any living thing, including plants and animals.
What is organisms
200
A chemical used to test for the presence or absence or amount of a substance in a material. BTB is an indicator of the presence of acid in liquids.
What is indicator
200
Any living thing, including plants and animals.
What is organism
200
An animal that eats both plants and other animals.
What is omnivore
200
an animal that eats other animals.
What is carnivore
200
An organism that breaks down plant and animal material into simple chemicals. The chemicals can then be reused in the ecosystem.
What is decomposer
300
One part of the environment. It can be nonliving, such as water, light, temperture, and chemicals, or living, such as plant or animal.
What is environmental factor
300
Everything that surrounds and influences an organism.
What is environment
300
A description of the feeding relationship between all of the organisms in an ecosystem. Arrows show the flow of energy from one organism to another.
What is food web
300
a community of living and nonliving things, and the relationship between them.
What is ecosystem
300
an organism, such as a plant or algae, that makes its own food.
What is producer
400
A set of compared investigations in which one variable is changed (manipulated) by steps while other variables are kept the same.
What is controlled experiment
400
Varying conditions of one environmental factor in which an organism can survive.
What is range of tolerance
400
An organism that cannot make its own food. Consumers eat other organisms.
What is consumer
400
The condidtion or degree of an environmental factor that is favorable to the growth and development.
What is optimum
400
An organism that cannot make its own food. They must eat other organisms.
What is consumer
500
Anything in an experiment that might affect the outcome.
What is variable
500
An animal that eats plants.
What is herbivore
500
A description of the feeding sequence of one set of organisms in an ecosystem, such as grass seeds, chipmunk, and hawk. Arrows point in the direction of the flow of energy from one organism to another.
What is food chain
500
Varying conditions of one environmental factor in which an organism can survive.
What is range of tolerance
500
a community of living and nonliving things, and the relationship between them.