experiments
photosynthesis
food webs
behavior
evolution
100
a factor that changes within an experiment
What is a variable?
100
energy needed for photosynthesis
What is the sun?
100
The level in a food web that contains the most stored energy.
What is producers?
100
An example of behavior in which one animal decides which animal gets to eat first.
What is social hierarchy?
100
A species that once lived on Earth but no longer has living members.
What is extinct?
200
The factor that gets tested
What is the independent variable?
200
the products of photosynthesis
What is glucose and oxygen?
200
Organisms that get nutrients from dead organisms.
What are decomposers?
200
An example of behavior in which animals hunt together and share the food.
What is cooperation?
200
If the food of a predator declines then the population of the predator will ______________.
What is decline?
300
the group that is tested without a variable
What is the control or control group?
300
the reactants (ingredients) of photosynthesis
What is water and carbon dioxide?
300
Organisms that eat only plants
What are herbivores?
300
An example of behavior where an animal marks and protects the area it lives in.
What is territoriality?
300
Why is the dark-colored mutation of the pepper moth beneficial in a polluted area?
Because the dark colored moths are camoflaged on the soot-covered trees.
400
unit to measure liquid volume
What is milliliters?
400
role of chlorophyll
What is "to capture sunlight" for photosynthesis?
400
Organisms that eat only animals.
What are carnivores?
400
An example of behavior in which different animals try to eat the same food.
What is competition?
400
The theory that over time the characteristics of a population change when changes occur in the ecosystem where it lives.
What is natural selection?
500
unit that measures mass
What is grams?
500
These organisms in a food web can make their own food by photosynthesis.
What is a producer?
500
Most animals get nitrogen from
What are eating other organisms?
500
An example of animals huddling together would help them keep______
What is warm or prevent heat loss?
500
The cause of a suddent trait change in a species. EX. all the field mice are usually tan but then a mouse with black fur is born.
What is a mutation?
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