Unit 4 Science Test Flashcards

1
Q

The surroundings of anything is an

A

environment

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2
Q

All the populations living in the same place is a

A

community

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3
Q

A group of one kind of living thing living in a certain place is a

A

population

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4
Q

All the living and non-living things in a certain place is an

A

ecosystem

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5
Q

The specific place a plant or animal lives in an ecosystem is a

A

habitat

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6
Q

To collect materials and make them into new items is to

A

recycle

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7
Q

______ describes an organism whose population is in danger of dying out

A

Endangered

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8
Q

________ describes an organism that used to live on earth but whose population completely died out

A

Extinct

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9
Q

To make less of something is to

A

reduce

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10
Q

Something an organism has that helps it survive in its ecosystem is an

A

adaptation

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11
Q

Match the words with the descriptions

an individual wildflower

A

Organism

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12
Q

Match the words with the descriptions

all the wildflowers in a field

A

population

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13
Q

Match the words with the descriptions

all the wildflowers, grass, mice, moles, and other plants and animals that live together in the same field

A

Community

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14
Q

Corn plant –> caterpillar –> bluebird –> owl

What describes the role of the corn plant?
a. producer
b. consumer
c. prey
d. all of these

A

a. producer

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15
Q

Corn plant –> caterpillar –> bluebird –> owl

What describes the role of the bluebird
a. consumer
b. prey
c. predator
d. all of these

A

d. all of these

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16
Q

Corn plant –> caterpillar –> bluebird –> owl

What describes the role of the owl?
a. producer
b. consumer
c. decomposer
d. all of these

A

b. consumer

17
Q

Corn plant –> caterpillar –> bluebird –> owl

There is an arrow going from the caterpillar to the bluebird because
a. the energy goes from the caterpillar to the bluebird
b. the energy goes from the bluebird to the caterpillar
c. the caterpillar eats the corn plant
d. the caterpillar eats the bluebird

A

a. the energy goes from the caterpillar to the bluebird

18
Q

Corn plant –> caterpillar –> bluebird –> owl

If the bluebird population was removed, what might happen to the owl population?
a. It would get smaller
b. It would get bigger
c. It would stay the same

A

a. it would get smaller

19
Q

Corn plant –> caterpillar –> bluebird –> owl

Which of these would cause the bluebird population to get smaller?
a. The owl population is removed
b. The caterpillar population is removed
c. The caterpillar population gets bigger
d. The corn plant population gets bigger

A

b. The caterpillar population is removed

20
Q

_______ ecosystems are dry and hot with very little rain

A

Desert

21
Q

_____ ecosystems have plenty of rain to water trees

A

Forest

22
Q

_____ ecosystems are home to lions, elephants, and cheetahs

A

Grassland_

23
Q

_____ ecosystems are cold with a lot of ice

A

Tundra

24
Q

_____ ecosystems are home to algae, reeds, fish, and coral.

A

Water

25
Q

Which of these is an example of a biotic thing in an ecosystem?
a. tree
b. sunlight
c. water
d. air

A

a. tree

26
Q

An organism that eats dead and decaying things is an _______

A

decomposer

27
Q

An animal that eats other animals is a _____

A

consumer

28
Q

A ____ organism that makes its own food from light and water

A

producer

29
Q

What adaptation does this polar bear have that helps it stay warm in the cold?

A

Thick fur

30
Q

What adaptations does a duck have that helps it live on a lake?

A

webbed feet

31
Q

What can change an ecosystem?
a. floods and drought
b. digging for rocks, minerals, or coal
c. building
d. all of these

A

d. all of these

32
Q

What happens when people cut down forests?

A

Many different organisms lose their habitats

33
Q

What can cause plant and animal populations in an ecosystem to drop to dangerous levels?

A

rapid changes