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Ecosystems NC

Total questions: 22

Worksheet time: 17mins

Name
Class
Date
1.

A ______________ is a group of organisms of the same species that live in the same habitat.

a)

ecosystem

b)

community

c)

niche

d)

population

2.
2 way relationship between organisms where both species are benefiting...
a)
symbiosis
b)
succession
c)
niche
d)
predator
3.

A large group of living things that live in the same area and have mutual interaction with one another.

a)

prey

b)

symbiosis

c)

population

d)

community

4.
What is a predator?
a)
the hunted
b)
the hunter
5.
A parasite is an organism that feeds off another organism
a)
True
b)
False
6.
How are people trying to restore Earth's natural resources?
a)
covering landfills with soil and planting grasses
b)
planting trees
c)
creating parks for wildlife
d)
all of the above
7.
A harmful substance that is added to the environment is called?
a)
food
b)
grass
c)
pollution
d)
basketball
8.
What are the 3 R's when taking care of our environment?
a)
restore, rocks, rebellion
b)
reduce, reuse, recycle
c)
retake, recycle, recap
d)
reteach, restore, recycle
9.
Interacting group of living and nonliving things in an area
a)
community
b)
ecosystem
c)
population
d)
niche
10.

An organism that produces food by photosynthesis.

a)

Producers

b)

Consumers

c)

Photosynthesis

d)

Saprophytism

11.

The main source of energy for producers.

a)

The sun

b)

Water

c)

Glucose

d)

Carbon dioxide

12.

A consumer that eats only plants.

a)

omnivore

b)

herbivore

c)

carnivore

d)

predator

13.

An organism that eats other organisms.

a)

host

b)

parasite

c)

consumer

d)

decomposer

14.

An organism that is killed and eaten by another organism.

a)

consumer

b)

decomposer

c)

prey

d)

host

15.

A carnivore that feeds on the bodies of dead organisms.

a)

predator

b)

carnivore

c)

scavenger

d)

omnivore

16.

A consumer that eats only animals.

a)

scavenger

b)

carnivore

c)

herbivore

d)

omnivore

17.

An arrangement of interrelated food chains illustrating the flow of energy between interdependent organisms.

a)

predator

b)

food web

c)

ecosystem

d)

food chain

18.

An organism on which a parasite lives.

a)

consumer

b)

host

c)

prey

d)

decomposer

19.

Explain the flow of energy in this food chain (who passes energy to who).

a)

The hawk gives energy to the snake. The snake gives energy to the mouse. The mouse gives energy to the grasshopper who gives energy to the grass.

b)

The mouse gives energy to the hawk. The snake gives energy to the grasshopper. The grass gives energy to the snake.

c)

The grass gives energy to the grasshopper. The grasshopper gives energy to the mouse. The mouse gives energy to the snake who gives energy to the hawk.

20.

Determine the number of food chain in the food web shown.

a)

3

b)

4

c)

5

d)

6

21.

Name the secondary consumer from the food web.

a)

Herring, otter and seal

b)

Pollock, herring and achovies

c)

Otter, dolphin and seal

d)

Pollock, dolphin and anchovies

22.

Estimate the number of hawk if the grasshopper is totally gone?

a)

Decreases

b)

Increases

c)

No change

d)

Extinct