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Lesson 7.5b

Total questions: 22

Worksheet time: 37mins

Name
Class
Date
1.

The diagram represents different levels of a marine food pyramid. Between which two levels is the greatest amount of energy transferred

a)

4 and 5

b)

1 and 2

c)

2 and 3

d)

3 and 4

2.
If additional snakes are introduced into this ecosystem, there will most likely be an immediate decrease in the _________.  
a)
hawk population
b)
rabbit population
c)
wildflower population
d)
grass population
3.
The shrew provides energy for the ...?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
4.

Where does the energy for all life forms ultimately originate?

a)

Earth's Core

b)

Water

c)

Plants

d)

The Sun

5.
The arrows in a food chain or web represents what?
a)
They point to the organism that is being eaten.
b)
It shows how sunlight flows within an ecosystem.
c)
They show what direction the energy is flowing between organisms. 
d)
They represent how water is transferred within a habitat.
6.
What might happen if you remove a primary consumer from the ecosystem?
a)
There would be more food for secondary consumers.
b)
The number of primary consumers would increase.
c)
The number of plants would increase.
d)
The number of secondary consumers would increase.
7.
How much energy is available to be passed on to the next trophic level in an ecosystem?
a)
100%
b)
10%
c)
50%
d)
75%
8.
A __________ includes all living and non-living things in an environment. 
a)
population
b)
niche
c)
abitotic
d)
ecosystem
9.
What would most likely happen if an ecosystem no longer received sunlight?
a)
The number of herbivores would increase
b)
The number of plants would increase
c)
all organisms would adapt
d)
All living organisms would eventually die
10.
What are interconnected food chains called?
a)
consumers
b)
predators
c)
food web
11.

A ​ __________ is an organism that collects energy from sunlight or inorganic substances to produce food.

a)

autotroph

b)

heterotroph

c)

carnivore

d)

herbivore

12.

A _________ is an organism that gets its energy requirements by consuming other organisms, they are also known as consumers.

a)

autotroph

b)

heterotroph

c)

herbivore

d)

omnivore

13.

Which organisms have the most available energy in an energy pyramid?

a)

Producers

b)

Consumers

c)

Decomposers

d)

Detritivores

14.
Which would be the appropriate term for an organism that eats a producer?
a)
scavenger
b)
decomposer
c)
secondary consumer
d)
primary consumer
15.
The owl and weasel compete for which organism?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
16.
The diagram represents a pyramid of energy in an ecosystem.  Which level would most likely contain organisms that can photosynthesize?
a)
A
b)
B
c)
C
d)
D
17.
What does a Primary Consumer eat?
a)
Tertiary Consumers
b)
Secondary Consumers
c)
Producers
18.
In a food web, arrows point at:
a)
who gets energy.
b)
who gets eaten.
19.

What is the food manufacturing process in plants?

a)

reparation

b)

glucose

c)

chlorophyll

d)

photosynthesis

20.

TRUE or FALSE: Plants make their own food and use the energy from the food that is made.

a)

True

b)

False

21.

TRUE or FALSE: Animals can make their own food inside themselves.

a)

True

b)

False

22.

Where do the stem and leaves get their green color from?

a)

glucose

b)

carbon dioxide

c)

oxygen

d)

Chlorophyll

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