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3.3 Discovery Ed Review

Total questions: 50

Worksheet time: 50mins

Name
Class
Date
1.
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 
a)
parasitism
b)
commensalism
c)
mutualism
2.
Yucca flowers are pollinated by yucca moths. The moths lay their eggs in the flowers where the larvae hatch and eat some of the developing seeds. Both species benefit. 
a)

parasitism

b)

commensalism

c)

mutualism

3.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 
a)
parasitism
b)
commensalism
c)
mutualism
4.
 The stork uses it saw-like bill to cut up the dead animals it eats. As a result, the dead animal carcass is accessible to some bees for food and egg laying. The relationship neither harms nor benefits the stork.
a)
parasitism
b)
commensalism
c)
mutualism
5.

Hermit Crabs live in shells made and then abandoned by snails.

a)

Commensalism

b)

Parasitism

c)

Competition

6.
In a parasitic relationship, one organism is ___________ and one organism is benefiting. 
a)
helped
b)
harmed
c)
not effected
d)
happy
7.
In a mutual relationship, both organisms are ________________. 
a)
hurt
b)
not effected
c)
harmed
d)
benefiting 
8.
Commensalism is where one organism is benefiting and the other organism is _____________________. 
a)
not effected
b)
helped
c)
harmed
d)
hurt
9.
1.  A bee and a flower work together to benefit each other. This is an example of _________________. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar. 
a)
commensal relationship 
b)
parasitic relationship 
c)
mutual relationship 
10.
A tick is a parasite to a horse. Which statement best describes the relationship between the tick and the horse? 
a)
a.  The tick helps the horse get food. 
b)
a.  The tick harms the horse by feeding on its blood. 
c)
a.  The horse harms the tick by feeding on its blood. 
d)
The tick does not affect the horse. 
11.
 Mrs. Bush’s cat has fleas. A flea is a parasite that gets its energy from Dante’s blood. How are the flea and the cat affected in this relationship? 
a)
Both organisms are helped.
b)
Both organisms are not affected.
c)
One organism is helped and one organism is not effected.
d)
One organism is helped and another organism is harmed. 
12.
Which is an example of commensalism?
a)
Two different kinds of organisms harming each other. 
b)
Two different kinds of organisms are neither helping nor harming each other. 
c)
One kind of organism is being helped, but the other one is not harmed or helped. 
d)
One kind of organism is being helped, but the other is harmed. 
13.
Which interaction benefits both organisms?
a)
A flea living on a dog
b)
A bee pollinating a flower
c)
A tapeworm living inside an animal
d)
A mosquito biting a person
14.
Tapeworms live in the intestines of dogs and absorb nutrients from food the dog eats. Which best describes the outcome of this relationship?
a)
The dog and tapeworm both become ill. 
b)
The dog becomes ill, and the tapeworm benefits. 
c)
The tapeworm and dog helpe ach other survive. 
d)
The tapeworm helps the dog survive. 
15.
A mite lives in the base of the eyelashes of people who use mascara. It feeds on the mascara; it does not seem to harm people. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
16.

Is wind a biotic or abiotic factor?

a)

biotic

b)

abiotic

17.

Are rocks biotic or abiotic factors?

a)

biotic

b)

abiotic

18.

Is temperature a biotic or abiotic factor?

a)

biotic

b)

abiotic

19.

Is water a biotic or abiotic factor?

a)

biotic

b)

abiotic

20.

Are producers biotic or abiotic factors?

a)

biotic

b)

abiotic

21.

Are consumers biotic or abiotic factors?

a)

biotic

b)

abiotic

22.

Are decomposers biotic or abiotic factors?

a)

biotic

b)

abiotic

23.

Is sunlight a biotic or abiotic factor?

a)

biotic

b)

abiotic

24.

Abiotic factors are ___________.

a)

non-living parts of an ecosystem

b)

living parts of an ecosystem

c)

things that once were alive, but now are dead

d)

not important parts of ecosystems.

25.

Biotic factors are ___________.

a)

non-living parts of an ecosystem

b)

living parts of an ecosystem

c)

things that once were alive, but now are dead

d)

not important parts of ecosystems.

26.

T/F: Abiotic factors are an unimportant part of ecosystems.

a)

true

b)

false

27.

What does the word root 'bio-' mean?

a)

living

b)

dead

c)

science

d)

study

28.

For what are the wildcat and the fox competing?

a)

Goat

b)

rabbit

c)

owl

d)

hawk

29.

Choose all the organisms that rely on grains as a food source.

a)

Rabbits

b)

Mice

c)

grasshopper

d)

birds

e)

owls

30.

Do the owl and the bird compete for resources?

a)

Yes, for the grasshopper

b)

Yes for the mice

c)

No they do not compete

31.

What abiotic factor would plants compete for?

a)

Food

b)

Sunlight

c)

Parasites

d)

predators

32.

A producer is something that:

a)

Eats plants

b)

Makes its own food

c)

Eats animals

d)

Eats plants and animals

33.

Producers are always at the __________ of a food chain

a)

Beginning

b)

Middle

c)

End

d)

Producers are not part of the food chain

34.

Consumers...

a)

Make their own food

b)

Go through photosynthesis

c)

Eat other organisms

d)

Breathe in carbon dioxide

35.

Consumers...

a)

Make their own food

b)

Go through photosynthesis

c)

Eat other organisms

d)

Breathe in carbon dioxide

36.

Which of these things is NOT a consumer

a)

Human

b)

Whale

c)

Tree

d)

Chicken

37.

What do the arrows show in this food chain:


plant → grasshopper → bird → snake → owl.

a)

The arrow points from the organism being eaten to the organism that eats it.

b)

The arrow points from the organism that eats it to the organism that is being eaten.

c)

The arrow points from biggest animal to smallest animal.

d)

The arrow points from the consumers to the producers.

38.

What do decomposers eat?

a)

Dead things

b)

Living things

39.

An autotroph is another word for a ________, meaning it needs to ________

a)

Consumer, eat other animals

b)

Consumer, eat other plants

c)

Producer, make its own food

d)

Producer, survive without water

40.

An heterotroph is another word for a ________, meaning it needs to ________

a)

Consumer, eat other organisms

b)

Consumer, go through photosynthesis

c)

Producer, make its own food

d)

Producer, survive without water

41.

Trees

a)

Decomposers

b)

Consumers

c)

Producers

42.

Falcon

a)

Decomposer

b)

Consumer

c)

Producer

43.

How many types of organisms in this food web obtain energy directly from producers?

a)

One

b)

Two

c)

Three

d)

Four

44.

What role do turkeys play in this food web?

a)

Decomposer

b)

Predator

c)

Consumer

d)

Producer

45.

A producer is a living thing that makes its own food from sunlight, air, and soil.

a)

True

b)

False

46.

Consumers get their energy by eating food.

a)

True

b)

False

47.

A herbivore is

a)

An animal that only eats other animals

b)

An animal that only eats plants

c)

An animal that eats both plants and animals

48.

What is a Carnivore?

a)

Animal that eats only plants

b)

Animal that eats only meat

c)

Animal that eats both plants and meat

49.

What is an Omnivore?

a)

Animal that eats only plants

b)

Animal that eats both plants and meat

c)

Animal that eats only meat

50.

Tiger

a)

Herbivore

b)

Omnivore

c)

Carnivore

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