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Ecosystems Unit 2

Total questions: 42

Worksheet time: 14mins

Name
Class
Date
1.

Name the four producers found in this image:

a)

Corn, A Flowering Plant, Lavenders, Mangoes

b)

Python, Rat, Frog, Wolf

c)

Eagle, Thrush, Dragonfly, Butterfly

d)

Grasshopper, Fruit Fly, Rat, Frog

2.

True or false: The image is depicting a food chain.

a)

True

b)

False

3.

Which animal eats the butterfly?

a)

Frog and dragonfly

b)

Frog and Thrush

c)

Dragonfly and grasshopper

4.

Which animal is the top predator?

a)

Python

b)

Eagle

c)

Wolf

d)

Frog

5.

List one secondary consumer:

a)

Python

b)

Grasshopper

c)

Frog

d)

Corn

6.

Identify the primary consumer from the following options:

a)

Eagle

b)

Grasshopper

c)

Wolf

d)

Python

7.

Which of the following is NOT an omnivore?

a)

a human eating salad and steak

b)

a giraffe feeding on tree leaves and shrubs

c)

a black bear eating berries and insects

d)

a pig eating meat and fruit

8.

How do carnivores' teeth differ from herbivores?

a)

Carnivores have no teeth

b)

Carnivores have sharper teeth

c)

Carnivores have flatter teeth

d)

There is no difference

9.

A ________ shows the complex, interconnected, multi-pathway feeding relationships in an ecosystem.

a)

Food chain

b)

Food web

c)

Photosynthesis

d)

Predator

e)

Ecosystem

10.

Which of these is NOT an example of mutualism?

a)

Ants protecting acacia trees from predators

b)

Bacteria helping humans digest food

c)

A flea living on a dog

d)

Fungi helping plant roots absorb nutrients

11.

Which is NOT a body part of a scorpion?

a)

Telson

b)

Cephalothorax

c)

Wings

d)

Abdomen

12.

Which of these adaptations is NOT typically found in herbivores?

a)

Flat teeth for grinding

b)

Only Sharp canines for tearing meat

c)

Long intestines for digesting plant matter

d)

Specialized stomachs for digesting plants

13.

When moss grows on trees, the moss benefits, the tree does not get harmed and does not benefit. This is an example of ___________.

a)

Commensalism

b)

Predation

c)

Mutualism

d)

Parasitism

14.

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants. This is an example of ___________.

a)

Parasitism

b)

Commensalism

c)

Mutualism

d)

Predation

e)

Symbiosis

15.

Which of the following is NOT typically found at the beginning of a food web?

a)

Grass

b)

Algae

c)

Eagle

d)

Flowering plants

16.

In a food web, how might the extinction of a producer affect tertiary consumers?

a)

It would have no effect on tertiary consumers

b)

It would immediately cause tertiary consumers to go extinct

c)

It could reduce the population of tertiary consumers indirectly

d)

It would cause tertiary consumers to switch to eating other producers

17.

What role do decomposers play in a food web?

a)

They eat only plants

b)

They hunt other animals

c)

They break down dead organisms

d)

They produce food from sunlight

18.

Which of the following are the two effects of invasive species on the ecosystem?

a)

Strengthening the existing species

b)

Disrupting food chains

c)

Increasing biodiversity

d)

Causing species extinction

e)

Creating new habitats

19.

Based on the information in the table, which transfer of energy is correct?

a)

Insects → oak tree → mice → squirrel

b)

Hawk → oak tree → mice → insects

c)

Oak tree → squirrel → skunk → hawk

20.

What type of symbiotic relationship is model C depicting?

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Competition

21.

Why is model C depicting mutualism?

a)

Neither species is benefiting

b)

Both species are benefiting

c)

One species is benefiting while the other is unaffected

22.

What type of symbiotic relationship is model B depicting?

a)

Mutualism

b)

Parasitism

c)

Commensalism

d)

Competition

23.

Why is model B depicting commensalism?

a)

Neither species is benefiting

b)

Both species are benefiting

c)

One species is benefiting while the other is unaffected

24.

What insects eat according to the table?

a)

Insects and oak tree

b)

Oak tree

c)

Skunks, mice, and squirrels

d)

Insects, mice, and squirrels

25.

Which animals are listed as food sources for hawks?

a)

Insects and oak tree

b)

Oak tree

c)

Skunks, mice, and squirrels

d)

Insects, mice, and squirrels

26.

What do skunks eat according to the table?

a)

Insects, mice, and squirrels

b)

Oak tree

c)

Skunks, mice, and squirrels

d)

Insects and oak tree

27.

Which animal eats both insects and oak tree?

a)

Squirrels

b)

Mice

c)

Hawks

d)

Skunks

28.

Describe how predation is different from parasitism.

a)

A) Predation involves one organism benefiting while the other is harmed, similar to parasitism.

b)

B) Predation involves one organism killing and eating another, while parasitism involves one organism living on or in another and causing harm.

c)

C) Predation and parasitism both involve mutual benefit between organisms.

d)

D) Predation involves organisms living together without affecting each other.

29.

Which of the following matches with 1?

a)

Oxygen

b)

Carbon dioxide

c)

Sunlight

d)

Glucose

e)

Water

30.

Which of the following matches with 2?

a)

Oxygen

b)

Carbon dioxide

c)

Sunlight

d)

Glucose

e)

Water

31.

Which of the following matches with 3?

a)

Oxygen

b)

Carbon dioxide

c)

Sunlight

d)

Glucose

e)

Water

32.

Which of the following matches with 4 or 5?

a)

Oxygen

b)

Carbon dioxide

c)

Sunlight

d)

Glucose

e)

Water

33.

Breaks down dead material and uses is for energy

a)

Producer

b)

Keystone species

c)

Herbivore

d)

Decomposer

34.

Makes its own food for energy

a)

Producer

b)

Keystone species

c)

Herbivore

d)

Decomposer

35.

Hunts and kills for food

a)

Carnivore

b)

Predator

c)

Keystone species

d)

Parasitism

36.

Easts only other consumers for energy

a)

Carnivore

b)

Predator

c)

Keystone species

d)

Parasitism

37.

A species an ecosystem largely depends on, if removed would be drastic changes

a)

Carnivore

b)

Predator

c)

Keystone species

d)

Parasitism

38.

One organism gets harmed the other benefits

a)

Carnivore

b)

Predator

c)

Keystone species

d)

Parasitism

39.

An organism that only eats plants/producers

a)

Carnivore

b)

Predator

c)

Invasive species

d)

Herbivore

40.

An addition to the ecosystem, causing drastic changes

a)

Carnivore

b)

Predator

c)

Invasive species

d)

Herbivore

41.

Which questions should scientists study in order to best understand the changing deer populations throughout the last 25 years? (pick 2)

a)

  1. When are deer more active?

b)

  1. Has the average size of a deer changed?

c)

  1. How much deer habitat has been lost to housing development?

d)

  1. Has the number of deer’s natural predators changed?

e)

  1. Why does the color of the deer’s coat change from summer to winter?

42.

Researchers count deer at the same time and at the same locations each year. Using the data in Table 1, choose the bar graph showing the number of deer recorded for each given year.

a)

b)

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