the intensity of light they receive, temperature range, amount and type of precipitation that falls, types of organisms that live there, and major geographic features, such as the amount and type of land and water.
contain either freshwater or salt walter or a mix of fresh and salt water
ponds, streams, rivers
deserts, grasslands, rain forests, and forests
A ________________ is a group of organisms of the same kind that lives in the same place. Examples of a population are swans in a pond or fish in a river.
The size of a population can increase or decrease depending on the ___________ available.
A ______________ is all of the populations that live together in the same place.
made up of fish, crabs, and seaweed
A water-related community is made up of _________.
made up of trees, squirrels, worms, rabbits and hawks
A dry-land community is a forest made up of________.
Organisms compete for the limited ____________ in their specific environment.
Plants and animals under go _____ _______. For example, frogs begin as eggs in water. The eggs grow into tadpoles, tadpoles eventually become frogs, and adult frogs lay eggs to start the life cycle over again.
In the _____ life cycle,a seed grows into a new plant that forms seeds. Then the new seeds repeat the life cycle.