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Food webs

Total questions: 20

Worksheet time: 28mins

Name
Class
Date
1.

Producers are ...

a)

plants

b)

able to do photosynthesis

c)

also called autotrophs

d)

all of these are true

2.

Arrows in a food web represent...

a)

eating

b)

sunlight

c)

energy

d)

matter

3.

Who is the herbivore?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

4.

The original source of energy for a food web is...

a)

plants

b)

sun

c)

producers

d)

decomposers

5.

Level 1 on the pyramid

a)

Producers

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

6.

Level 2 on the pyramid

a)

Producers

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

7.

Level 3 on the pyramid

a)

Producers

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

8.

Level 4 on the pyramid

a)

Producers

b)

Primary Consumer

c)

Secondary Consumer

d)

Tertiary Consumer

9.

Which section of the pyramid has the most energy?

a)

1

b)

2

c)

3

d)

4

10.

How much energy moves up each level of the energy pyramid?

a)

5%

b)

10%

c)

50%

d)

90%

11.
What are the organisms that break down dead stuff?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Organisms
12.
If the number of births in a population is the same as the number of deaths in a population, what will happen to the growth of the population?
a)
It will increase.
b)
It will decrease.
c)
It will stay the same.
d)
It will fluctuate.
13.
If the number of births is greater than the number of deaths in a population, what will happen to the growth of the population?
a)
It will increase.
b)
It will decrease.
c)
It will stay the same.
d)
It will fluctuate.
14.
What is the carrying capacity for this sheep population?
a)
1.8 million
b)
1.25 million
c)
1.6 million
d)
1.o million
15.
In a forest ecosystem, which of the following is the best example of a limiting factor for a rabbit population?
a)
Squirrel Population
b)
Sunlight
c)
Grass available
16.
When organisms move out of the population, this is known as
a)
emigration
b)
abandonment
c)
immigration
d)
succession
17.

A massive tornado

a)

density dependent limiting factor

b)

density independent limiting factor

18.
a)

exponential growth curve

b)

logistic growth curve

19.

b

a)

exponential growth

b)

growth slows

c)

growth stops

d)

growth begins

20.
Which kind of growth does the human population follow? It is described as a J-shaped curve.
a)
Exponential Growth
b)
Logistic Growth
c)
Outstanding Growth
d)
Minimal Growth

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