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Chapter 1 Test: Populations and Communities

Total questions: 56

Worksheet time: 38mins

Name
Class
Date
1.

All the members of one species in a particular area

a)

community

b)

habitat

c)

population

d)

ecosystem

2.

A living part of an organism’s habitat

a)

limiting factor

b)

biotic factor

c)

abiotic factor

d)

ecosystem

3.

An environmental factor that causes a population to decrease

a)

limiting factor

b)

biotic factor

c)

abiotic factor

d)

ecology

4.

A relationship in which at least one species benefits

a)

symbiosis

b)

competition

c)

succession

d)

community

5.

The largest population that an area can support

a)

population density

b)

death rate

c)

immigration

d)

carrying capacity

6.

The number of individuals in an area of a specific size

a)

population density

b)

death rate

c)

immigration

d)

carrying capacity

7.

A group of organisms that are physically similar and can mate with each other are called

a)

ecosystem

b)

community

c)

species

d)

population

8.

All the different populations that live together in an area make up the

a)

biotic factor

b)

community

c)

habitat

d)

population density

9.

Characteristic that allows a species to live successfully in its environment

a)

natural selection

b)

niche

c)

adaptation

d)

host

10.

Process in which a species becomes better suited to its environment

a)

natural selection

b)

niche

c)

adaptation

d)

host

11.

An interaction where one organism kills and eats another

a)

competition

b)

parasitism

c)

commensalism

d)

predation

12.

A symbiotic relationship in which one species benefits and the other is neither harmed nor helped

a)

mutualism

b)

commensalism

c)

parasitism

d)

adaptation

13.

A symbiotic relationship in which one species benefits and the other is harmed

a)

mutualism

b)

commensalism

c)

parasitism

d)

adaptation

14.

A symbiotic relationship in which two species benefit from each other

a)

mutualism

b)

commensalism

c)

parasitism

d)

adaptation

15.

A living thing is called a(n)

a)

organism

b)

abiotic factor

c)

ecosystem

d)

community

16.

The process of plants and algae using sunlight, water, and carbon dioxide to make food

a)

carrying capacity

b)

oxygen reclamation

c)

disapparition

d)

photosynthesis

17.

An approximation of a number based on reasonable assumptions

a)

estimate

b)

population

c)

sampling

d)

carrying capacity

18.

Moving into an area is called

a)

immigration

b)

emigration

c)

migration

d)

U-hauling it

19.

Moving out of an area is called

a)

immigration

b)

emigration

c)

migration

d)

dissaparating

20.

In a parasitic relationship, the organism that lives in or on another organism and benefits from it is called the:

a)

annoying little sibling

b)

parasite

c)

host

d)

commensalism

21.

The organism that is harmed is called the:

a)

older and smarter sibling

b)

parasite

c)

host

d)

commensalism

22.

The number of deaths in an area over a certain amount of time is called

a)

birth rate

b)

death rate

c)

doing math homework.

d)

social studies projects

23.

The struggle between organisms to survive as they attempt to use the same limited resources

a)

niche

b)

predation

c)

mutualism

d)

competition

24.

What is the correct order from smallest to largest?

a)

organism → population → community → ecosystem

b)

organism → community → population → ecosystem

c)

organism → population → ecosystem → community

d)

population → organism → species → ecosystem

25.

Which of the following is the correct definition for ecology?

a)

The study of communities and organisms

b)

The study of how living things interact with each other

c)

The study of how living things interact with each other and with their environment

d)

The study of abiotic factors in an ecosystem

26.

The community of organisms that live in a particular area, including their nonliving surroundings is called a(n) ___.

a)

ecosystem

b)

community

c)

habitat

d)

ecology

27.

The role of job an organism has in the ecosystem is called its ____.

a)

biotic factor

b)

niche

c)

abiotic factor

d)

limiting factor

28.

While gathering nectar to eat, this bee is also spreading the flowers pollen from one plant to another. This is an example of what type of symbiotic relationship?

a)

mutualism

b)

commensalism

c)

parasitism

d)

predation

29.

These sea lamprey attached to the lake trout are an example of what type of symbiotic relationship?

a)

mutualism

b)

commensalism

c)

parasitism

d)

abiotic factor

30.

The Remora fish following the shark around the ocean to feed on scraps is an example of what type of symbiotic relationship?

a)

commensalism

b)

parasitism

c)

mutualism

d)

biotic factor

31.

This bear was tagged by biologist in the summer of 2021 as part of a population study. What method were the scientists using?

a)

mark-and-recapture

b)

direct observation

c)

indirect observation

d)

sampling

32.

Scientists want to know what impact moose are having on aspen trees inside Isle Royale National Park. First though, scientists will need to know how many aspen trees are in the park. Which method would be the best for them to use for estimating the Aspen population inside the park?

(a)  

33.

Recently scientists have started using aerial photos of caribou in the spring to count all the adults and calves. What method of studying population is this? (a)  

34.

Scientists studying great blue heron populations will often visit their breeding areas, called rookeries, to count the number of nests. What method of estimating populations is this an example of?

a)

direct observation

b)

indirect observation

c)

sampling

d)

mark-and-recapture

35.

What term best describes this group of bison?

(a)  

36.

All the squirrels living on school property are an example of a (a)  

37.

What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.

(a)  

38.
What type of symbiosis?  Skunks often live in burrows that have been dug and abandoned by woodchucks.  
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
39.
Mistletoe extracts water and nutrients from a spruce tree. The spruce tree is harmed. 
a)
parasitism
b)
commensalism
c)
mutualism
d)

biotic factor

40.
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
41.

A turtle's shell is an example of what type of prey adaptation?

a)

camouflage

b)

protective covering

c)

warning colors

d)

mimicry

42.

The spicebush swallowtail caterpillar in the picture is using what prey adaptation?

a)
mimicry
b)

protective covering

c)

warning colors

d)

camouflage

43.

Many brightly colored insects are poisonous to predators, what prey adaptation are they using?

(a)  

44.

What prey adaptation is the butterfly using with the spots that look like eyes?

a)

camouflage

b)

false coloring

c)

protective covering

d)

warning colors

45.

What happens if a population grows past its carrying capacity?

a)

The population keeps growing

b)

The population reduces untl it is below carrying capacity again

c)

The entire species will go extinct

d)

The carrying capacity just increases

46.
All of the living and nonliving things in an area that interact with each other are called a/an ______.
a)
community
b)
habitat
c)
population
d)
ecosystem
47.

This area suffered from a forest fire which is an example of (a)   succession

48.

This picture shows the succession of a volcanic island. This is an example of (a)   succession.

49.

Which occurs more slowly, primary or secondary succession?

(a)   succession

50.

A group of scientists are studying the skunk population in an area. They have noticed that the population is starting to decline. They have already ruled out disease, predators, and over hunting as causes. What are some other possible reasons the population cold be declining? Choose all that apply.

a)

lack of food

b)

lack of water

c)

loss of habitat (space)

d)

severe winter weather

e)

Mr. Reed Skunk virus

51.

Barnacles are animals that cannot move. In order to get food, they attach to whales and catch any floating plankton in the water. The whale is neither helped nor harmed in the interaction. What type of symbiosis is this?

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Neutralism

52.
Ostriches and gazelles feed next to each other. They both watch for predators and alert each other to danger. Because their visual abilities are different, they can identify threats that the other animal would not see as readily. 
a)
parasitism
b)
commensalism
c)
mutualism
53.
The flower of the yucca plant provides the only location where the yucca moth can lay her eggs. In the process, the moth pollinates the yucca flower. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
54.

Mr. Weller's favorite spot to go fishing is the 1000 Islands region on the St. Lawrence River. The cool waters, island rock formations, variety of fish and birds, and ideal weather make it an enjoyable area for the best science teacher in the world to relax after teaching the best 8th graders in the world. What word best describes this location?

a)

community

b)

habitat

c)

ecosystem

d)

population

55.
Populations contain more than one member of the species. Which one of these is a population?
a)
Deer and mice
b)
10 squirrels
c)
squirrel
d)
squirrel, deer, and mice
56.

Barnacles do not affect whales as they grow, but receive the benefit of a food source. This is

a)

parasitism

b)

mutualism

c)

commensalism

d)

neutralism