A ______ makes its own food.
Producer
A group of the same kind of living things in an ecosystem make up a ________.
Population
Recently a family of wolves moved into an area with a large rabbit population. What changes may occur in the ecosystem?
a. Rabbit population increases
b. Rabbit population decreases
A body part or behavior that helps a living thing survive is called an ________.
adaptation
Some birds fly south for the winter to avoid cold weather. This is an example of ___.
a. learned behavior
b. instincts
c competition
b. instincts
A __________ eats only plants.
Herbivores
An animal that eats only meat is a _________.
Carnivore
Movement from one area to another is _______.
migration
A behavior that an animal is born knowing how to do is called an _________.
a. instinct
b. extinct
a. instinct
Fawns do not look like adult deer. They have white spots on their backs that help them blend with the forest floor. What adaptation is this?
Camouflage
A _____________ eats meat and plants.
Omnivore
An animal that has to eat plants or other animals to survive is
a. producer
b. consumer
Consumer
________ is an inactive state in which normal body activities slow.
Hibernation
An adaptation that helps an animal hide from predators is called _____.
camouflage
Name an abiotic factor.
sun, water, air, soil
The movement of energy in an ecosystem or in a sequence is shown by a ____ ______.
A living thing that feeds on the remains of dead plants and animals is a _________.
Decomposer
A population of mice live in a barn community. A cat population has just joined the community. What will happen?
a. mouse and cat population go up
b. mouse and cat population go down
c. mouse population goes down as cat population goes up
d. mouse population goes up as cat population goes down
c. mouse population goes down as cat population goes up
Horse's teeth are adapted for which activity?
a. eating meat
b. eating grass
c. eating meat and plants
Name a basic need that ALL organisms need. (There are four of them)
food, water, air and shelter
The living and nonliving things in an area make up an _______.
If a habitat experiences a drought, the available resources will _______.
decrease
Deer are herbivores that feed on the leaves of small plants. What might happen if more deer move into a certain area?
a. small plants will become scarce, and not all the deer will have enough food.
b. small plants will grow better, and all the deer will have plenty of food
c. the deer population will not change
d. deer will learn to eat mice and rabbits
a. small plants will become scarce, and not all the deer will have enough food.
What do migration and hibernation have in common?
a. they are learned behaviors that help animals survive
b. they are instincts that help animals meet their needs
b. they are instincts that help animals meet their needs
Name a biotic factor in an ecosystem.
teachers will check answers