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Food Webs, Chains, and Pyramids

Total questions: 66

Worksheet time: 2hrs 36mins

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.

All of these are types of consumers except...

a)

omnivores

b)

carnivores

c)

decomposers

d)

herbivores

4.

Who is the producer?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

5.

Who is the herbivore?

a)

lettuce

b)

greenfly

c)

ladybird

d)

thrush

6.
a)

This is a food chain

b)

This is a food web

c)

This is an energy pyramid

7.

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

a)

plants

b)

sun

c)

producers

d)

decomposers

8.

Which section of the pyramid has the most energy?

a)

1

b)

2

c)

3

d)

4

9.

Which section of the pyramid has the least 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.

Decomposers get energy from...

a)

the sun

b)

eating plants

c)

eating animals

d)

dead things and waste

12.
Example of a consumer
a)
worm
b)
bacteria
c)
mushroom
d)
hawk
13.
Example of a decomposer
a)
fungus
b)
mouse
c)
plants
d)
frogs
14.
A tree is a ....
a)
composer
b)
decomposer
c)
producer
15.
Humans are considered...
a)
consumers
b)
decomposers
c)
producers
16.
What is a producer?
a)
an organism that gets energy from eating other organisms
b)
an organisms that uses sunlight to make its own food
c)
an organism that gets energy from eating dead organisms, non-living material or waste
d)
an organism that uses chemical energy to make its own food
17.
A connection of food chains with many food energy paths in an ecosystem is a ____________
a)
ecosystem
b)
food web
c)
environment
d)
population
18.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
19.
Which organism is the top predator in this food web?
a)
leopard seal
b)
killer whale
c)
elephant seal
d)
crabeater seal
20.
Name the producers in this food web.
a)
seagull and fish
b)
penguin and crab
c)
phytoplankton and seaweed
d)
seaweed and zooplankton
21.
The krill is eaten by which consumer?
a)
blue whale
b)
phytoplankton
c)
leopard seal
d)
penguin
22.
Which consumer receives energy from the leopard seal?
a)
blue whale
b)
penguin
c)
killer whale
d)
elephant seal
23.
What type of consumer is the shrew?
a)
herbivore
b)
omnivore
c)
carnivore
24.
What type of consumer is the impala?
a)
herbivore
b)
omnivore
c)
carnivore
25.
They caracal is prey to which animal?
a)
snake
b)
mouse
c)
grasshopper
d)
baboon
26.
According to this food web, how many consumers are herbivores?
a)
2
b)
1
c)
4
d)
5
27.
Which of the following is a predator of the shrew?
a)
cricket
b)
grasshopper
c)
frog
d)
snake
28.
What type of consumer is the wolf?
a)
herbivore
b)
omnivore
c)
carnivore
d)
decomposer
29.

If a disease strikes the snakes the hawks will

a)

increase

b)

decrease

c)

not be affected

30.

If a disease strikes the snakes the rabbits will

a)

increase

b)

decrease

c)

not be affected

31.

If a disease strikes the snakes the grass will

a)

increase

b)

decrease

c)

not be affected

32.
What are animals called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Plants
33.
What are plants called in a food chain?
a)
Producers
b)
Consumers
c)
Decomposers
d)
Scavengers
34.
Which best describes what a food chain shows you?
a)
Energy flow through an ecosystem
b)
Food flowing through an ecosystem
c)
Consumers going into other consumers
d)
Who eats who
35.
Where does the energy start in this food chain?
a)
Plant
b)
Sun
c)
Deer
d)
Wolf
36.
What's the role of consumers in a food chain?
a)
Use sunlight to make food 
b)
Eat other species and keep them from overpopulating
c)
Break down dead stuff
d)
Add nutrients to the soil
37.
What is the role of a producer?
a)
Use sunlight to make food
b)
Gain energy from eating other organisms
c)
Keep other species from overpopulating
d)
Breaking down dead stuff 
38.
What is the role of decomposers in a food chain?
a)
Use sunlight to make food
b)
Eat other organisms to gain energy
c)
Make the food for the whole food chain
d)
Break down dead organisms and add nutrients to the soil
39.
Which type of consumer eats plants only?
a)
Herbivores
b)
Omnivores
c)
Carnivores
d)
Scavengers
40.
Which type of consumer eats meat and plants?
a)
Herbivores
b)
Carnivores
c)
Omnivores
d)
Plants
41.
Which type of consumer eats meat only?
a)
Producers
b)
Herbivores
c)
Carnivores
d)
Omnivores
42.
Which of these is true about this food web?
a)
The Owl gets its energy from the producer.
b)
The Lion gets its energy only from a wild cat.
c)
The Kite gets its energy from the goat.
d)
The Mouse is most likely to die, several ways.
43.
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.
44.
What does a food web represent?
a)
All connections of energy flow throughout all organisms in a habitat.
b)
The specific ways that mutualism is carried out.
c)
A single pathway or energy flow between organisms. 
d)
How carnivores get their food. 
45.

Several owls live in a forest. The owls prey on mice. Hawks also prey on mice. Which might happen if several hawks move to the forest where the owls live?

a)

The number of owls will increase, and the number of hawks will decrease.

b)

The number of mice will increase, and the number of owls will decrease.

c)

The number of owls and hawks will increase.

d)

The number of owls and mice will decrease.

46.

This diagram shows how energy flows through an eco-system. What is the first source of energy in this pyramid?

a)

sharks and large birds

b)

algae, plankton and seagrass

c)

herbivorous fish, crustaceans and sea urchins

d)

seals and carnivorous fish

47.
Use the dichotomous key to identify fish y
a)
trumpet fish
b)
spotted eagle ray
c)
spotted goat fish
d)
glass eye snapper
48.
Over time, honey suckle flowers developed a sweet smell to attract pollinators. This is and example of _________
a)
selective breeding
b)
dichotomous key
c)
natural selection
d)
extinction
49.
Some species of birds are very similar. Each species lives on different island. Which of the following is the best explanation for why one species has a longer beak than the others?
a)
They need a longer beak for defending itself against predators.
b)
They originated from a different type of bird than the other species.
c)
The longer beak is an adaptation to the food available in the bird’s habitat.
d)
The beak stretched to reach its food and the longer beak was passed down to its offspring.
50.
How can farmers best use selective breeding to increase apple production?
a)
By increasing the amount of water and fertilizer the trees receive.
b)
By choosing trees that are the largest in size.
c)
By choosing trees that consistently have the most apples.
d)
By limiting the number of trees growing so they have more space.
51.
A species of bird ate many types of seeds.  The individuals vary in beak size.  If a drought were to kill off the trees that produce small seeds and leave only large seeds, how would the population change?
a)
The birds with larger beaks were better at eating the large seeds than those with smaller beaks, so only the birds with larger beaks got enough food to survive, reproduce, and pass the trait of large beaks to the next generation.
b)
The birds with smaller beaks had to work harder than those with larger beaks to crack open the large seeds.  The more they used their beaks, the larger their beaks became, so they were able to get enough food to survive, reproduce, and pass the traits of large beaks to the next generation.
c)
The birds with smaller beaks grew their beaks so that they would be better able to eat the large seeds and get enough food to survive, reproduce, and pass the trait of larger beaks to the next generation.
d)
Beak size is random and will not be determined by the types of seeds available.
52.
Which of the following is REQUIRED for the process of natural selection to occur?
a)
Members of the same species must compete with one another.
b)
Members of different species must compete with one another.
c)
There must be a sudden environmental change.
d)
Traits must be inherited from one generation to the next.
53.
A Viceroy butterfly looks like the Monarch butterfly. The Viceroy tastes terrible to birds, so birds won't take the chance and eat the Viceroy. What is this kind of adaptation?
a)
Mimicry
b)
Camouflage
c)
Hibernation
d)
Migration
54.
An organism has thick white fur, a bushy tail, and short ears. It often burrows holes and curls into a ball for warmth. For which environment is this organism most likely adapted?
a)
Grassland
b)
Arctic Tundra
c)
Coniferous Forest
d)
Desert
55.
Beak shape depends on...
a)
where birds live 
b)
who they hang out with 
c)
diet (fish or seeds) 
d)
exercise 
56.
An example of a behavioral adaptation is
a)
The long neck of a giraffe
b)
Penguins huddling together for warmth
c)
A camel's hump used to store water
d)
A polar bear's white fur used for camouflage
57.

Which biome is the driest? It receives less than 10 inches of rain a year.

a)

desert

b)

grassland

c)

deciduous forest

d)

tropical rain forest

58.

In which biome would you find giraffes and elephants?

a)

desert

b)

deciduous forest

c)

savanna

d)

tundra

59.

In which biome would you find permafrost? This is the layer of soil that is frozen all the time.

a)

coniferous forest (taiga)

b)

desert

c)

tundra

d)

grassland

60.

Which biome gets the most amount of rain every year?

a)

decidious forest

b)

tropical rain forest

c)

desert

d)

tundra

61.

Which biome has the greatest amount of biodiversity? (the most different kinds of organisms)

a)

tundra

b)

grassland

c)

desert

d)

tropical rain forest

62.

Which biome has trees that lose their leaves in the fall and regrow them in the spring?

a)

deciduous forest

b)

coniferous forest (taiga)

c)

tropical rain forest

d)

desert

63.

Which biome is the coldest?

a)

tundra

b)

desert

c)

grassland

d)

savanna

64.

Which biome has conifer trees or evergreens? These trees have needles that are coated in a waxy substance and drop cones.

a)

deciduous forest

b)

desert

c)

coniferous forest (taiga)

d)

tropical rain forest

65.

In which biome would I find prairie dogs, is also known as “Tornado Alley”, and is flat with lots of grasses?

a)

desert

b)

grassland

c)

tundra

d)

tropical rain forest

66.

Which biome has NO trees because much of the ground is frozen all the time?

a)

tundra

b)

desert

c)

savanna

d)

coniferous forest (taiga)

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