I
the movement to animals from one place to another when the seasons change
migration
the transfer of energy from one living thing to another for survival
chain
four things animals need in a habitat
food, shelter, space, and water
the direction in which water flows
current
the very bottom of the rainforest
forest floor
a group of grazing land animals that stay together for protection
herd
An organism in the food chain that helps to break down dead things
decomposer
a dry land area having very little plant growth
desert
animals that are active at night
nocturnal
layer of the rainforest where plants grow close to the ground
understory
a_______ is a flat grassland of North America
prairie
when a consumer has no natural enemies, it becomes the ____________
Top predator
frigid region around the North Pole
tundra
animals that eat only meat
carnivorous
tiny microscopic water animals
zooplankton
an animal that depends on grasses for food
grazer
all plants in the food chain are
producers
the plants of a habitat
vegetation
animals that eat plants and meat
omnivore
a small traveling body of fresh water
stream
the natural home of a plant or animal
habitat
animals that find and consume food for energy
consumers
a group of fish that swim together
school
treeless land in the Arctic where subsoil is permanently frozen
tundra
am fly is a _________ in the food chain
decomposer