What do you call a system where living and nonliving things interact?
an ecosystem
100
Why is a desert a system?
a. People do not live there
b. It consists mostly of plants.
c. Each part of the desert is independent
d. It has parts that work together for a purpose
d. It has parts that work together for a purpose
100
What would happen if most of a population of animals died of a disease?
The food web would change
100
What is the difference between a niche and a habitat of a desert roadrunner?
The niche is what the animal DOES.
The habitat is where the animal LIVEs.
100
A decomposer is a plant that makes its own food.
False. A decomposer breaks down dead organisms.
200
What do you call the place where an animal lives?
its habitat
200
Which adaptation would be useful to an animal whose niche is eating nectar from plants?
a. fins
b.wings
c. fast legs
d. short beak
wings
200
What is the BEST explanation for a decrease in the population of birds in a community?
The amount of food decreases
200
Explain what a food web is and how it is different from a food chain
a food web shows energy (arrows) traveling in many different directions. A food chain shows energy (arrows) traveling in only one direction in a straight line.
200
The niche of an animal is the job it does.
True
300
What do you call the role or job an animal has in an ecosystem?
niche
300
What is the main energy source for life on earth?
f. water
g. sunlight
h. chemicals
i. green plants
g. sunlight
300
If you see a prairie dog in a hole in the ground, what would you call that hole?
its habitat
300
What is the best description of the niche (role) of zooplankton in a food web?
it is a consumer
300
Consumers are animals that eat only meat.
False. Consumers may be herbivores, omnivores, or carnivores.
400
An organism that makes its own food is called what?
a producer
400
Which of these is a producer?
a. deer
b. grass
c. hawk
d. worm
b. grass
400
What does an animal need to TRAVEL through a food chain?
a. herbivores
b. ecosystems
c. oxygen
d. nutrients and minerals
d. nutrients and minerals
400
Name some producers in our forest ecosystem
things like grass, bushes, trees, wild onions, etc...
400
A carnivore is an organism that eats herbs.
False. A carnivore is a meat eating animal
500
an organism that eats the remains of dead animals is called what?
decomposer
500
What is an omnivore?
a. an animal that is a producer
b. an animal that eats only plants
c. an animal that eats only consumers
d. an animal that eats plants and animals
d. an animal that eats plants and animals
500
What would be the place of a freshwater snail in the swamp food chain?
A. It is eaten by algae and birds
b. It eats zooplankton and a sunfish
c. it eats algae and is eaten by birds
c. it eats algae and is eaten by birds.
500
How do decaying organisms in a swamp help to create the next generation of organisms?
the decaying organisms put minerals and nutrients back into the soil so that plants (producers) can use it to make food and start the cycle all over again.
500
An herbivore is a producer
False. An herbivore is a consumer that consumes producers.