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Science 9 Unit A Section 1 & 2 Review Quiz

Total questions: 75

Worksheet time: 50mins

Name
Class
Date
1.

The "sapiens" part of the Homo sapiens refers to the ________ of humans

a)

Family

b)

Class

c)

Genus

d)

Species

2.

Why is biodiversity in an ecosystem so important?

a)

Because it can help humans where to determine good places to develop farm land.

b)

Because places that have a healthy biodiversity are unaffected by major disturbances.

c)

Because having a high biodiversity allows ecosystems to withstand major changes.

d)

Because having a high biodiversity allows for fewer opportunities of competition for similar resources.

3.
High biodiversity is 
a)
having a lot of the same organism.
b)
having a few of the same organism.
c)
having a lot of variety of different organisms.
d)
only having one of each organism. 
4.

Look at each picture carefully. Decide if the picture shows a population or a community.


The Emperor penguins in Antarctica.

a)

Population

b)

Community

5.

Look at each picture carefully. Decide if the picture shows a population or a community.


All the animals in the grasslands.

a)

Population

b)

Community

6.

Define ecosystem diversity

a)

variety of environments and their organisms 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

7.

Define genetic diversity

a)

variation of DNA 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

8.

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

9.

A group of organisms that are similar enough to be in the same category that can reproduce together to pass on their genes.

a)

Organism

b)

Species

c)

Breed

10.

Which region of the globe has the highest biodiversity?

a)

equator

b)

North Pole

c)

South Pole

d)

None, biodiversity is equally distributed

11.
What effect does biodiversity have on a community?
a)
It makes destruction by insects impossible. 
b)
It makes primary succession more likely.   
c)
 It enables species to survive in a desert.
d)
It enables the community to withstand changes.
12.

As you increase the latitude (get closer to the poles), what happens to the biodiversity?

a)

increases

b)

decreases

c)

does not change

13.

Levels get increasingly specific from?

a)

kingdom to species

b)

phylum to genus

c)

mammalia to family

d)

order to family

14.
Which of the following statements best describes a specialist?
a)
adapted to a large range of environments
b)
adapted to a small range of environments
c)
adapted to any environment
d)
poorly adapted to the environment
15.
Which species tend to go extinct more frequently?
a)
narrow niche creatures
b)
broad niche creatures
16.

The ecological role an organism performs in their specific environment is considered the organism's...

a)

Habitat

b)

Population

c)

Biome

d)

Niche

17.

A relationship in which two different organisms live in close association with each other

a)

interspecific competition

b)

Mutualism

c)

Symbiosis

d)

Commensalism

18.

a relationship between two species in which both species compete for limited resources such that both species are negatively affected by the relationship

a)

predator-prey

b)

interspecific competition

c)

mutualism

d)

parsitism

19.

the differentiation of niches that enables similar species to coexist in a community

a)

character displacement

b)

climax community

c)

resource partitioning

d)

pioneer species

20.
The ecological niches of three bird species are shown in the diagram. What is the advantage of each bird species having a different niche?
a)
As more birds feed higher in the tree, available energy increases.
b)
More abiotic resources are available for each bird.
c)
Predators are less likely to feed on birds in a variety of locations.
d)
There is less competition for food.
21.

Ostriches and gazelles feed next to each other and watch for predators, alerting each other to danger. Since the visual abilities of the two species are different, they each can identify threats the other animal would not as readily see. This is an example of -

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Predation

22.

Ticks live on dogs and feed off the dog’s blood. They may also infect the dog with a parasite that can cause the dog to become quite sick. Dogs also are sometimes found to be very tired because a large volume of their blood has been drained. This is an example of -

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Predation

23.

Cattle egrets eat the insects stirred up by cattle when they are grazing. The cattle are unaffected, while the birds gain food. This is an example of -

a)

Mutualism

b)

Commensalism

c)

Parasitism

d)

Predation

24.

What type of species can withstand a wide variety of environmental conditions?

a)

Generalist

b)

Specialist

c)

Fundamentalist

d)

Realist

25.

What type of species can withstand a narrow range of environmental conditions?

a)

Generalist

b)

Specialist

c)

Fundamentalist

d)

Realist

26.
Use the diagram to answer the question.
The trout is a source of food for the human and the eagle. When there are more than one organism vying for the same source we call this____?
a)
Population
b)
Resources
c)
Community
d)
Competition
27.

The population of deer in a certain area is monitored over a period of six years. The data is represented in the graph provided.


(See Attached Diagram)


Which of the following is the most likely explanation for the change in population in 2009?

a)

Wolves, which prey on deer, were being hunted more than usual.

b)

Rainfall in the previous spring was higher than the yearly average.

c)

Humans introduced grazing animals that feed on the same plants as the deer.

d)

More insects that pollinate flowering plants move into the habitat.

28.
Why are advantageous traits more likely to be passed onto offspring?
a)
Because they are more likely to survive and reproduce.
b)
Because they come from dominant alleles.
c)
Because they come from recessive alleles.
d)
Because the trait is an acquired phenotype.
29.
The trees these moths used to live on were white, but have been covered in soot from coal factories. Which moth will be more successful in this environment?
a)
Dark moth
b)
Light moth
c)
Both will be equally successful
d)
Neither will be successful
30.
Why is the mouse population changing over time?
a)
The light mice can reproduce more successfully than the dark mice
b)
The hawks eat more dark mice than light mice because the dark mice taste better
c)
The hawks eat more light mice than dark mice because they can see the light mice more easily
d)
The hawks eat more dark mice than light mice because they can see the dark mice more easily
31.

A yellow morph and green morph of an insect lives in the rainforest canopy. You would expect:

a)

the green population to increase and the yellow to decrease

b)

both populations should stay the same

c)

both populations will increase

d)

the green population to decrease and the yellow to increaseThis is a wrong answer

32.
In recent years "SuperBugs" (bacteria that aren't effected by antibiotics) are becoming more and more common. How could natural selection explain this?
a)
Superbugs survive antibiotics and reproduce
b)
Antibiotics cause bacteria to become superbugs
c)
We have always had the same amount of superbugs; modern media just discusses them more.
d)
There is no reliable data on the origin of super bugs.
33.
Which of these is an example of natural selection?
a)
The largest animal in a population will have more opportunities for reproduction.
b)
Several species of organisms work together so that they all succeed.
c)
One species takes all the resources in an environment leaving none for others.
d)
Organism that are best suited to an environment tend to survive and reproduce more often.
34.

The graphs below show the changes in crab color at one beach.

Which of the following is most likely to have caused the change in the distribution?

a)

A new predator arrived that preferred dark-tan crabs.

b)

A new predator arrived that preferred light-tan crabs.

c)

A change in beach color made medium-tan crabs the least visible to predators.

d)

A change in beach color made medium-tan crabs the most visible to predators.

35.

What is the most likely explanation of the data shown below?

a)

There has been a drought in the area that is affecting all life forms.

b)

The population of natural predators of the moths has gotten smaller.

c)

The moths are living in an environment with light trees.

d)

The moths are living in an environment with dark trees.

36.
What process is being shown in this image?
a)
Variation
b)
Natural Selection
c)
Selective Breeding
d)
Homeostasis
37.

Which two characteristics show variation as a result of inherited factors only?

a)

blood group

b)

pierced ears

c)

number of freckles

d)

natural eye colour

e)

height

38.

Which two characteristics show variation as a result of environmental factors only?

a)

blood group

b)

pierced ears

c)

Scar

d)

natural eye colour

e)

height

39.

Which two characteristics show variation as a result of a combination of both inherited and environmental factors?

a)

blood group

b)

pierced ears

c)

number of freckles

d)

natural eye colour

e)

height

40.

For which type of variation can a measurement have any numerical value?

a)

continuous variation

b)

discrete variation

41.

For which type of variation are differences grouped into categories?

a)

continuous variation

b)

discrete variation

42.

If you were to investigate the height of everyone in your class, what type of data would you be gathering?

a)

continuous variation

b)

discrete variation

43.

If you were to investigate the eye colour of everyone in your class, what type of data would you be gathering?

a)

continuous variation

b)

discrete variation

44.

Which three features show discrete variation?

a)

blood group

b)

height

c)

foot length

d)

eye colour

e)

gender

45.
Which one of the following is an environmental variation?
a)
Attached ear lobes
b)
Eye colour
c)
Male or female
d)
Short hair
46.

Which of these features of butterflies is an example of discrete variation?

a)

Area of wings

b)

Length of body

c)

Length of legs

d)

Presence of spots

47.

A small growth on an organism that splits and grows into a new organism

a)

regeneration

b)

mitosis

c)

binary fission

d)

budding

48.

When an organism splits into an exact copy

a)

fertilization

b)

binary fission

c)

regeneration

d)

budding

49.

Type of reproduction that makes an identical copy of a parent cell

a)

sexual reproduction

b)

asexual reproduction

c)

internal fertilization

d)

external fertilization

50.

The movement of pollen from one flower to another flower

a)

zygote

b)

pollination

c)

internal fertilization

d)

fertilization

51.

The joining of male and female sex cells

a)

asexual reproduction

b)

internal fertilization

c)

pollination

d)

fertilization

52.

One cell that has both female and male reproductive cell

a)

mitosis

b)

clone

c)

pollination

d)

zygote

53.

Which is an advantage of sexual reproduction?

a)

It only needs one parent to produce offspring.

b)

It is a rapid process.

c)

It allows genetic variation.

d)

It produces identical offspring.

54.

The offspring of sexual reproduction:

a)

receives half of its genetic material from each parent

b)

receives all of its genetic material from one parent

c)

receives genetic material from an outside source

d)

develops genetic material independent of any other source

55.

:

A scientist is observing a new species of organism. She observes that from generation to generation many of the organisms’ offspring have adaptations that their parents did not have. This organism is most likely reproducing through __________.

a)

budding

b)

asexual reproduction

c)

sexual reproduction

d)

binary fission

56.

There are a couple thousand different species of brittle star. At certain times of the year, male and female stars release sperm and eggs into the ocean. They can also reproduce by simply splitting in half and grow new body parts. How does the organism reproduce?

a)

Sexual reproduction

b)

Asexual Reproduction

c)

Both Asexual and Sexual reproduction

d)

Can't reproduce

57.

The sea horse is unique among fish: it mates for life with the same partner. It is the dad who gets pregnant. The female deposits her eggs in the male's pouch which are then fertilized.( The pouch is an external structure that grows on the body of the male) What type of reproduction?

a)

Asexual reproduction

b)

Sexual reproduction

c)

Both Sexual and Asexual reproduction

58.

Pollen grains produced by a flower are carried by a be to the stigma of another flower. What type of reproduction

a)

Sexual reproduction

b)

Asexual reproduction

c)

Both sexual and asexual reproduction

59.

A stem is cut from a plant and grows its own roots and leaves. A process called vegetative propagation (cutting)

What type of reproduction?

a)

Sexual reproduction

b)

Asexual reproduction

c)

Both asexual and sexual reproduction

60.

What is FALSE about the offspring in this image

a)

will increase genetic variation in the population

b)

required only 1 parent

c)

will be genetically identical to 1 parent

d)

the parent did not need to use energy to find a mate

61.

The images are examples of which type of reproduction

a)

Asexual

b)

Sexual

62.

What is true about the offspring in this image?

a)

They will be genetically unique and not identical to their parents

b)

They will share the identical DNA as their parent

c)

Two parents were required to create offspring

d)

The offspring will not carry the same diseases as the parent

63.

What is FALSE about the offspring in this image?

a)

Will have identical DNA to one of their parents

b)

Will be a genetically unique individual

c)

Will receive have their DNA from each parent

d)

Requires 2 parents

64.

Which disadvantage is most related to asexual reproduction

a)

slower process

b)

requires more energy

c)

produces less offspring

d)

there is no genetic diversity

65.

Which advantage is most related to asexual reproduction?

a)

produces many offspring quickly

b)

increases genetic diversity

c)

sometimes both parents help to raise the offspring

d)

the health of the population increases overtime because of genetic variation

66.

What is a disadvantage of sexual reproduction?

a)

Requires more energy to find a mate

b)

there is no genetic diversity in the offspring

c)

if the parent has a genetic disorder the offspring will also have that disorder

d)

requires one parent

67.
The male reproductive organ in plants
a)
anther
b)
stigma
c)
pistil
d)
stamen
68.
The female reproductive organ in plants
a)
pistil
b)
stamen
c)
filament
d)
anther
69.
A sperm cell unites with an egg cell to form a zygote. Which process is taking place? 
a)
Pollination
b)
Asexual reproduction
c)
Fertilization
d)
Vegetative propagation
70.
In sexual reproduction, what is the source of the genetic material in a zygote? 
a)
 An egg cell only
b)
A pollen and a sperm cell
c)
 A sperm cell only 
d)
An egg cell and a sperm cell
71.

What is the name of flower part #4 ?

a)

stamen

b)

ovary

c)

anther

d)

petal

72.

What is the name of flower part #6 ?

a)

pistil

b)

style

c)

ovary

d)

anther

73.

What is the name of flower part #10 ?

a)

anther

b)

ovary

c)

petal

d)

stigma

74.

What is the name of flower part #12 ?

a)

style

b)

ovule

c)

stamen

d)

pistil

75.

This part of the plant bears pollen?

a)

anther

b)

filament

c)

pistil

d)

stamen

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