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ENV: Biodiversity

Total questions: 78

Worksheet time: 3615secs

Name
Class
Date
1.
What is the difference between biotic and abiotic?
a)
Biotic are non-living things
b)
Abiotic are living organisms
c)
Biotic is life,
Abiotic is non-living
d)
Biotic is non-living, Abiotic is living
2.
What does biodiversity mean?
a)
Only one species in an area.
b)
The different amount of species in an area
c)
All abiotic life
d)
Nitrogen fixation
3.
Food provides animals with the materials and energy they need for growth, warmth, and motion. Plants get material for growth mostly from air and water, and obtain energy from sunlight.

Producers provide food to consumers because ―
a)
many animals prefer eating plants to eating meat
b)
plants can easily make food from soil and water
c)
animals cannot produce their own food
d)
plants are more abundant in ecosystems
4.
The illegal capture or killing of an organism, often for money, is called...
a)
poaching
b)
harvesting
c)
fragementation
d)
extinction
5.
A drought has hit this grassland biome. How will this effect the rabbit population?
a)
The rabbits will increase in number.
b)
The rabbit population will stay the same.
c)
The rabbit population will decrease.
d)
The rabbit population will become extinct immediately.
6.
All living and nonliving things in an environment and the many ways they interact are called ______
a)
ecosystem
b)
community
7.
Brown trout consume (eat) more tadpoles when the fly larvae reduce in number (decrease).  This proves...
a)
The dependence of organisms and biodiversity in an ecosystem
b)
Diversity increases as organisms decrease
c)
Losing an animal is good for ecosystems
d)
Changes in ecosystems create new organisms
8.
In this tundra food web, if grasses were removed what would happen to the sustainability of the ecosystem?
a)
There would be an overpopulation of arctic hares and lemmings.
b)
Polar bears would move to a new ecosystem
c)
The ecosystem would collapse because it lost its main producer
d)
Wildflowers would die out from the ecosystem
9.

Define biodiversity

a)

variety of life in Earth's land, freshwater, and marine ecosystems

b)

variety of ecosystems in a given area

c)

the number of different species in a given area and the number of individuals of each species that are present

d)

the variation of genes within a species or population in a given area

10.

Define genetic diversity

a)

variation of genes within a species or population in a given area

b)

variety of ecosystems in a given area

c)

system made up of all the living and nonliving things in a given area

d)

disturbance in the environment conditions that cause genetic changes to occur in organisms

11.

Define ecosystem diversity

a)

variety of ecosystems in a given area

b)

variation of genes within a species or population in a given area

c)

variety of life in Earth's land, freshwater, and marine ecosystems

d)

changes to an ecosystem that affect how the parts of it interact

12.

Define species diversity

a)

both the number of different species and individuals of each species in a given area

b)

variation of genes within a species or population in a given area

c)

variety of ecosystems that are in a given area

d)

changes in an ecosystem that affect of the organisms interact with one another

13.

Define ecosystem stability

a)

a healthy ecosystem with factors that stay mostly stable

b)

a healthy ecosystem with factors that fluctuate between great and terrible

c)

an unhealthy ecosystem with factors that stay mostly stable

d)

an unhealthy ecosystem with factors that fluctuate between great and terrible

14.

Which statement best describes an example of low species diversity?

a)

A population of frogs has a wide variety of skin colors

b)

A marsh ecosystem is covered by a single species of cattail bulrushes

c)

A state park includes multiple forest, wetland, and freshwater ecosystems

15.

Which statement best describes an example of high species diversity?

a)

A pond ecosystem is populated by a single species of frogs

b)

A state park includes multiple forest and freshwater ecosystems with many different species of fish, frogs, and birds

c)

A desert ecosystem is populated only by organ pipe cacti, camels, and armadillo lizards

16.

Define mutualism

a)

symbiotic relationship where both organisms benefit from interaction

b)

symbiotic relationship where one organism benefits and the other is harmed from interaction

c)

symbiotic relationship where one organism benefits and the other is neither harmed nor benefited

17.

Define commensalism

a)

symbiotic relationship where one organism benefits and the other is neither harmed nor benefited

b)

symbiotic relationship where both organisms benefit from interaction

c)

symbiotic relationship where one organism benefits and one organism is harmed

18.

Define parasitism

a)

symbiotic relationship where one organism is harmed and one is benefited

b)

symbiotic relationship where both organisms benefit from interaction

c)

symbiotic relationship where one organism benefits and one organism is harmed

19.

Define competition

a)

symbiotic relationship where both organisms benefit from interaction

b)

when two or more individuals or populations try to use the same limited resources

c)

variation of genes within an ecosystem in a given area

d)

variety of life among Earth's land, freshwater, and marine ecosystems

20.

What two groups often exhibit ecological competition?

a)

individuals and populations

b)

populations and communities

c)

communities and ecosystems

d)

organisms and biospheres

21.

Competition between different populations may result in ______.

a)

fewer resources for some populations

b)

fewer resources for some ecosystems

c)

more resources for some populations

d)

more resources for some ecosystems

22.

What can biodiversity influence within an ecosystem?

a)

how well the ecosystem recovers from a disturbance

b)

how well the ecosystem grows after rain

c)

how poorly the ecosystem responds to a drought

23.

Which example represents a mutualism symbiotic relationship?

a)

alligator and plover bird

b)

flea and dog

c)

remora fish and shark

24.

Which example represents a commensalism symbiotic relationship?

a)

remora fish and shark

b)

flea and dog

c)

alligator and plover bird

25.

Which example represents a parasitic symbiotic relationship?

a)

flea and dog

b)

remora fish and shark

c)

alligator and plover bird

26.

What will and abundance of resources often result in for an ecosystem?

a)

growth of individuals and populations

b)

grown of biosphere

c)

decline of individuals and populations

d)

decline of biosphere

27.

Which represents an example of a limited abiotic resource?

a)

low oxygen levels in a pond that can affect fish populations

b)

fungi destroying fruit of a banana tree of which insects feed on

28.

Which represents an example of a limited biotic resource?

a)

low oxygen levels in a pond that can affect fish populations

b)

fungi destroying fruit of a banana tree of which insects feed on

29.

Species are reproductively isolated, this means:

a)

They interbreed to produce fertile offspring

b)

They do not interbreed to produce fertile offspring

c)

There is genetic diversity between them

d)

There is molecular diversity between them

30.

An endemic species is one which

a)

Only exists in a certain region/area

b)

Exists all over the world

c)

Is extinct

d)

Is able to breed to produce fertile offspring

31.

The bottleneck effect occurs when

a)

There is a very diverse genotype between species

b)

Two species are able to interbreed with one another

c)

There is drastic reduction in population size

d)

A species has a habitat invaded by another species

32.

A community represents

a)

All the living organisms living together in a particular habitat

b)

Members of the same species living together in a particular habitat

c)

The various components of an ecosystem

d)

The habitat in which animals live

33.

Choose the correct order

a)

Genus > Species > Order > Class > Family > Phylum > Kingdom > Domain

b)

Kingdom > Domain > Phylum > Class > Order > Family > Genus > Species

c)

Kingdom > Domain > Phylum > Class > Order > Family > Species > Genus

d)

Domain > Kingdom > Phylum > Class > Order > Family > Genus > Species

34.

Classification of bacteria is based on

a)

Position of flagella

b)

Gram staining

c)

Cell shapes

d)

All of the above

35.

Hand writing of scientific name should

a)

Underline genus and species

b)

First and second world should be capital letters

c)

First world should be capital letters, second world should be small letters

d)

A and C is correct

36.

How many species are estimated to exist on Earth?

a)

2 million

b)

8 million

c)

10 million

d)

30 million

e)

100 million

37.

Two savanna communities both contain 15 plant species. In community A, each of the 15 species is represented by 20 individuals. In community B, 10 of the species are represented by 12 individuals; the remaining 5 species are each represented by 3 individuals. Which statement best describes the two communities?

a)

Community A has the same biodiversity as community B.

b)

Both communities have the same species evenness.

c)

Community B has a higher species evenness.

d)

Community A has a higher species evenness.

e)

Community B has a lower species richness.

38.

Phylogeny is

a)

the number of evolutionary related species in an ecosystem

b)

the study of morphological traits

c)

the branching pattern of evolutionary relationships

d)

the process of evolution that creates new species

e)

the genetic biodiversity of a species

39.

Phylogeny is

a)

the number of evolutionary related species in an ecosystem

b)

the study of morphological traits

c)

the branching pattern of evolutionary relationships

d)

the process of evolution that creates new species

e)

the genetic biodiversity of a species

40.

Which evolutionary effect results in reduced genetic variation in a community?

a)

Natural Selection

b)

The founder effect

c)

Artificial selection

d)

Gene Flow

e)

Mutation

41.

Which is the best definition of an adaption?

a)

A mutation that creates a new species

b)

A trait that improves an individuals fitness

c)

A trait that is passed on to the next generation

d)

A trait that has no effect on an individual's fitness

e)

A trait created by natural selection

42.

The change in the genetic composition of a population over time due to random mating is called

a)

the bottleneck effect

b)

gene flow

c)

genetic drift

d)

mutation

e)

phenotype adaption

43.

Which of the following would cause the most-rapid evolution?

a)

Environmental change

b)

Artificial selection

c)

Geographic isolation

d)

Recombination

e)

Natural selection

44.

The abiotic conditions under which a species can survive and reproduce is called its

a)

range of tolerance

b)

realized niche

c)

range of persistence

d)

environmental distribution

e)

fundamental niche

45.

Which would be expected for a niche specialist?

a)

A large distribution

b)

Many food sources

c)

A narrow fundamental niche

d)

Adaptability to changing conditions

e)

No difference between its realized and fundamental niche

46.

How many mass extinction events have there been in Earth's history?

a)

2

b)

4

c)

5

d)

7

e)

12

47.

Which is NOT a significant cause of the current mass extinction event?

a)

Invasive species

b)

Climate change

c)

Overharvesting

d)

Habitat destruction

e)

Extreme weather events

48.

What is Biodiversity?

a)

The number of plants throughout the world

b)

The number of different animals existing

c)

The number of different species in an area

d)

None of the above

49.

Which of the following are factors that affect biodiversity?

a)

Climate

b)

Poaching

c)

Pollution

d)

Area

e)

Niche Diversity

50.

Poaching and Pollution are example of what?

a)

Climate

b)

Disturbances in Ecosystems

c)

Protection of Ecosystems

d)

Exotic Species

51.

What is protecting Biodiversity?

a)

Protecting an individual endangered species or entire ecosystem

b)

Harming an entire ecosystem

c)

Contaminating the environment with pollution

d)

All of the above

52.

What does biodiversity mean?

a)

Only one species in an area.

b)

The different amount of species in an area

c)

All abiotic life

d)

Nitrogen fixation

53.
The illegal capture or killing of an organism, often for money, is called...
a)
poaching
b)
harvesting
c)
fragementation
d)
extinction
54.
A drought has hit this grassland biome. How will this effect the rabbit population?
a)
The rabbits will increase in number.
b)
The rabbit population will stay the same.
c)
The rabbit population will decrease.
d)
The rabbit population will become extinct immediately.
55.
A drought has hit this grassland biome. How will this effect the rabbit population?
a)
The rabbits will increase in number.
b)
The rabbit population will stay the same.
c)
The rabbit population will decrease.
d)
The rabbit population will become extinct immediately.
56.
In this tundra food web, if grasses were removed what would happen to the sustainability of the ecosystem?
a)
There would be an overpopulation of arctic hares and lemmings.
b)
Polar bears would move to a new ecosystem
c)
The ecosystem would collapse because it lost its main producer
d)
Wildflowers would die out from the ecosystem
57.

Which biome has the most biodiversity?

a)

Tundra

b)

Desert

c)

Tropical Rainforest

d)

Grasslands

58.
What does biodiversity mean?
a)
Only one species in an area.
b)
The different amount of species in an area
c)
All abiotic life
d)
Nitrogen fixation
59.
What do biologist call an ecosystem that has reached its maximum potential?
a)
Rainforest 
b)
Environment
c)
Climax Community
d)
Biome
60.
Which level is NOT included in the concept of biodiversity?
a)
Ecosystem
b)
Subspecies
c)
Species
d)
Genetic
61.
What happens when a species experiences “inbreeding depression”?
a)
The species becomes too large for the resource base
b)
Genetically similar parents produce superior offspring
c)
Genetically similar parents produce inferior offspring
d)
The number and variety of species increases
62.
According to the concept of “latitudinal gradient,” which of the following happens? 
a)
Species richness decreases over time
b)
Countries like Canada have many more species than expected
c)
Species richness decreases towards the equator
d)
Species richness increases towards the equator
63.
Ecologist and paleontologists agree that 
a)
extinction is tied exclusively to human activities
b)
about 99% of all species alive today have been discovered
c)
99% of all species that have ever lived are now extinct
d)
Siberian tigers will make a full recovery due to gen. diver.
64.
When a species goes extinct in just one area it is called 
a)
endemic
b)
extirpation
c)
extinction
d)
inbreeding
65.

Which of the following best explain biodiversity?

a)

It is the totality of all organisms on Earth.

b)

It is the sum total of all things on Earth.

c)

It is the variability of matter in the environment.

d)

All of these are correct

66.

It is a group of organisms consisting of similar individual capable of interbreeding.

a)

Species diversity

b)

Species

c)

Population

d)

Exosystem

67.

Why is genetic diversity within a population important?

a)

A. So the population is less susceptible to disease

b)

B. So individuals of the population ca survive when the environment changes

c)

C. So museums can have realistic collections

d)

D. Both A and B are correct

68.

Why is biodiversity valuable and desirable to humans?

a)

For medical purposes

b)

For agricultural diversity

c)

For consumptive uses

d)

All of these are correct

69.

At what level of biodiversity are you dealing with if you are interested in studying the diferent breeds of dog?

a)

Species diversity

b)

Genetic diversity

c)

Ecosystem diversity

d)

Biodiversity

70.

It is said that “no two persons are alike.” Why is this so? Due to __________.

a)

Species diversity

b)

Genetic diversity

c)

Ecosystem diversity

d)

Biodiversity

71.

If you were to take a count of the richness of animal species in your town, what would you be measuring?

a)

Species diversity

b)

Genetic diversity

c)

Ecosystem diversity

d)

Biodiversity

72.

How many species are estimated to be living on Earth?

a)

Between 10,000 to 100,000

b)

Between 500,000 to 1 million

c)

Between 1 and 5 millions

d)

Between 5 and 10 millions

73.
Where will you find the most biodiversity?
a)
in the south pole
b)
in the north pole
c)
near the equator
d)
in the oceans
74.

What is protecting Biodiversity?

a)

Protecting an individual endangered species or entire ecosystem

b)

Harming an entire ecosystem

c)

Contaminating the environment with pollution

d)

All of the above

75.
the trend of increasing global temperatures
a)
global warming
b)
ozone layer
c)
greenhouse effect
d)
acid rain
76.

An organism that is currently living where they are not native

a)

invasive species

b)

keystone species

c)

species diversity

d)

all species

77.
Why do populations of invasive species grow so quickly?
a)
Invasive species have many different natural predators
b)
Invasive species have no natural predators
c)
Invasive species are harmful to the ecosystem
d)
Invasive species populations don't grow quickly
78.
1. What makes a species invasive?
a)
Moving to a new ecosystem and taking resources from natives 
b)
Not having papers
c)
Species that can't adapt
d)
Plants that take up too much space

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