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Science 2nd Quarter Revision- Gr.10

Total questions: 131

Worksheet time: 4hrs 58mins

Name
Class
Date
1.

    Which of the following is not an ecosystem?

a)

Vacant lot 

b)

Coral reef

c)

Oak forest

d)

Swimming pool

2.

  The energy in most ecosystems comes from

a)

Green plants

b)

The sun

c)

Wind

d)

All of them

3.

The organisms most likely to belong to the same species are

a)

people at a football game.

b)

birds in a forest

c)

bacteria inside a person’s body.   

d)

a.                      organisms in a pond.

4.

   Which of the following statements about an organism’s habitat is not true?

a)

                  An organism’s habitat is the place where it lives.

b)

                   A habitat has specific characteristics that an organism needs in order to live there.

c)

                     Most organisms can survive if they are taken away from their habitat.

d)

                 A habitat contains biotic and abiotic factors.

5.

The community of a pond is made up of all the ___________________

a)

                      abiotic factors in the water.

b)

                     resources organisms need.

c)

                   habitats in and around the water.

d)

                     populations of fish, insects, and other living organisms.

6.

    Organisms can adapt _________________

a)

a.  to their physical surroundings.

b)

b. to other organisms.

c)

c.  Both (a) and (b)                     

d)

d. Neither (a) nor (b)

7.

   An organism is resistant to a chemical if it ______________

a)

a.   has a gene that enables it to break down the chemical.

b)

b. has been exposed to a small amount of the chemical over time

c)

c. did not eat anything with the chemical on it.

d)

d. All of them

8.

   In order for evolution to occur in a population, individuals with a trait that is “naturally selected for” must __________

a)

live a long time.

b)

leave the area.

c)

reproduce.

d)

coevolve

9.

Most scientists classify organisms into ____________________

a)

five kingdoms and two domains. 

b)

three kingdoms and four domains.

c)

four kingdoms and three domains.

d)

two kingdoms and four domains.

10.

Which of the following animals is successful because it moves quickly, reproduces rapidly, and has a waterproof external skeleton

a)

ants

b)

birds

c)

lizards

d)

bears

11.

Which of the following can convert nitrogen in the air into a form plants can use?

a)

fungi

b)

bacteria

c)

protists

d)

animals

12.

   Which of the following is not an algae that uses energy from the sun to make food?

a)

phytoplankton

b)

seaweed

c)

angiosperm

d)

giant kelp

13.

Which of the following describes soil and temperature in an ecosystem?

a)

biotic factors

b)

abiotic factors

c)

unnecessary factors

d)

evolved factors

14.

Which of the following best describes a population?

a)

a. members of the same species living in the same place at the same time

b)

b. all the red birds in an area

c)

c. all types of organisms living in the same place

d)

d. all members of the same species

15.

  One way that bacteria and fungi are important to the environment is that they _____________

a)

a. produce oxygen.

b)

b. use the sun’s energy to make their own food.

c)

c. are a major food source in many ecosystems.

d)

d. break down dead organisms.

16.

Which of the following statements is not correct?

a)

a.  Plants and other producers get their energy directly from the sun.

b)

b.  Animals get their energy from the sun indirectly.

c)

c. Bacteria that live deep in the ocean get their energy from hydrogen sulfide in hot water.

d)

d.  Consumers get their energy directly from the sun.

17.

Which kind of organism obtains energy only from producers?

a)

decomposers

b)

omnivores

c)

herbivores

d)

All of them

18.

If an insect eats a plant and a bird eats the insect, about how much energy from the plant is stored in the insect for the bird to use?

 

a)

90%

b)

50%

c)

10%

d)

1%

19.

Which of the following does not contain carbon from the bodies of plants and animals that died millions of years ago?

a)

Coal

b)

Oil

c)

Natural gas

d)

Phosphate salt

20.

Which gas makes up 78 percent of our atmosphere but can be used by plants only when transformed by bacteria first?

 

a)

Hydrogen

b)

Oxygen

c)

Helium

d)

Nitrogen

21.

Which of the following plants is likely to be a pioneer species?

                                        

a)

a. lichen     

b)

b. grass

c)

  c.  shrub

d)

d. trees

22.

What kind of natural disaster helps some forest communities by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth?

a)

a. windstorm

b)

b. flood

c)

c. drought

d)

d. fire

23.

Which statement describes how humans are affecting the balance of carbon in the atmosphere?

a)

Fewer agricultural crops are planted, reducing the amount of carbon dioxide released into the atmosphere.

b)

Burning fossil fuels in great quantities has increased the amount of carbon dioxide in the atmosphere.

c)

Overgrazing of grasslands has reduced the amount of carbon dioxide in the atmosphere.

d)

Severe drought in large areas of the world has decreased the amount of carbon dioxide that is released into the atmosphere.

 

24.

Which of the following are photosynthetic organisms?

a)

fungal decomposers

b)

freshwater algae

c)

intestinal bacteria

d)

deeply buried soil bacteria

25.

Consumers are organisms that _______________________

a)

eat only other animal species.

b)

get their energy by eating other organisms.

c)

are also known as self-feeders.

d)

occupy an ecosystem’s lowest energy level.

26.

Plants play a crucial role in the carbon cycle because they _________

a)

a.  do not release carbon dioxide during cellular respiration.

b)

b.  allow carbon to enter an ecosystem through photosynthesis.

c)

c.  have special bacteria that live in their root systems.

d)

d. are chemically converted into fossil fuels when burned.

27.

The bacteria that live within the roots of a soybean plant are a critical part of the nitrogen cycle because they ____________________

 

a)

a. provide the plant with sugars needed for growth.

b)

b. transform nitrates into nitrogen gas for release.

c)

c. change atmospheric nitrogen into a usable form for other organisms.

d)

d. release nitrogen by decomposing dead plant parts.

28.

Succession is possible because _________________

a)

climates change over time.

b)

it is a rapid and chaotic process that is very difficult to control

c)

existing plants reproduce quickly.

d)

ecosystems are disrupted by natural or human-caused events.

29.

Which of the following is an example of secondary succession?

a)

a. breaking down of bare rock by fungi and mosses

b)

b. pioneer plants begin to grow after glacial melting

c)

c. growth of plants after a forest is destroyed by fire

d)

d. appearance of weeds in cracks in a concrete surface

30.

Which of the following is not a likely component of soil formed during primary succession?

a)

a. cast-off parts of shrubs and trees           

b)

b. decayed lichens and bacteria

c)

c.  dust particles from the air

broken bits of stone and rock

d)

d. dust particles from the air

31.

Which organism is likely to be in the bottom trophic level of a food chain?

a)

algae

b)

krill whale

c)

fish

d)

leopard seal

32.

What term is used to refer to the many feeding relationships that are possible in an ecosystem?

a)

energy transfer

b)

energy pyramid

c)

food chain

d)

food web

33.

  Which of the following is responsible for making nitrogen in the atmosphere usable by living organisms?

a)

absorption of nitrogen in rain

b)

conversion of nitrogen into carbohydrates by photosynthesis

c)

nitrogen-fixing bacteria

d)

decomposing bacteria

34.

Which item is a carbon sink and not part of the carbon cycle?

a)

a. carbon in the atmosphere in the form of carbon dioxide

b)

b. consumers breaking down carbohydrates into carbon dioxide during respiration

c)

c. carbon found within limestone rocks

d)

d. carbon dioxide being converted into carbohydrates during photosynthesis

 

35.

  What type of vegetation would you expect to find on an abandoned farm that has remained undisturbed for 150 years?

a)

a.  short grasses                            

b)

b. shrubs                                 

c)

  c.  young pine trees

d)

 d. tall, mature oak trees

36.

What type of succession occurs after a natural process such as a flood?

           

a)

a. primary succession     

b)

b. secondary succession                         

c)

  c. old-field succession

d)

 d. climax community

37.

Which of the following is one of the largest carbon reservoirs on Earth?

a)

a. limestone                                      

b)

b. fossil fuels                                 

c)

  c. Amazon rain forest         

d)

  d.  Atlantic Ocean

38.

A process in which energy from the sun is used to make sugar molecules is called (a)  

39.

A process within the cell of an organism that uses glucose and oxygen to produce carbon dioxide, water, and energy is called (a)  

 

40.

Some natural disasters, such as (a)   , help some forest communities by allowing some trees to release their seeds, by clearing away deadwood, and by encouraging new growth.

41.

On new islands formed by volcanic activity, you will most likely find (a)   succession.

42.

The first organisms to colonize any newly available area are known as (a)  

 

43.

Excessive use of (a)   on lawns and gardens can affect the nitrogen and phosphorus cycles in nearby lakes and streams.

 

44.

  During succession, a final and stable community is referred to as a(n) (a)  

45.

A gradual process of change and replacement of the types of species in a community is called (a)   succession.

46.

A common type of succession that occurs on a surface where an ecosystem has previously existed is known as (a)  

47.

Underground carbon sources composed of plants and animals that died millions of years ago are known as (a)  

48.

Explain: Only about 10 percent of the energy is passed from one trophic level to the next. Explain where the other 90 percent of the available energy goes.

4 lines
49.

Compare and contrast primary and secondary successions.

4 lines
50.

All herbivores are _____.

a)

producers

b)

primary consumers

c)

secondary consumers

d)

tertiary consumers

51.

If an organism uses photosynthesis to make its energy, it is a _____.

a)

tertiary consumers

b)

producer

c)

primary consumer

d)

secondary consumer

52.

All the living things in an ecosystem are the _______ of an ecosystem.

a)

ecosystem

b)

abiotic factors

c)

biotic factors

d)

plants

53.

Many populations of animals and plants living together in a forest is an example of a _________.

a)

producer

b)

population

c)

abiotic factors

d)

community

54.

A _________ is a diagram of all of the food chains in a single ecosystem.

a)

food web

b)

food chain

c)

energy pyramid

d)

primary consumer

55.

The sun, water, oxygen, and climate are all examples of _____.

a)

biotic factors

b)

abiotic factors

c)

plants

d)

producers

56.
A __________________ is a type of animal that hunts other animals to eat. 
a)
prey
b)
herbivore
c)
predator
d)
producer
57.
A consumer gets energy by doing what?
a)
Making it themselves.
b)
Breaking down biotic wastes and dead organisms and returning raw materials to the ecosystem.
c)
Soaking it up from the ground.
d)
Feeding on other organisms.
58.
A food chain is?
a)
Overlapping food chains in an ecosystem.
b)
The amount of energy that moves from one feeding level to another in a food web.
c)
A series of events in which one organism eats another and obtains energy.
d)
biotic and abiotic factors in an area.
59.
The energy role that break down biotic wastes and dead organisms is?
a)
Consumer
b)
Producer
c)
Scavenger
d)
Decomposer
60.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
61.
This type of consumer eats both other consumers and producers to obtain energy. It's name means "ALL" or "WHOLE" in latin.
a)
Carnivore.
b)
Herbivore.
c)
Omnivore
d)
Scavenger.
62.
Pick the best name for the picture.
a)
Food Web
b)
Food Chain 
c)
Ecosystem
d)
Habitat
63.
What does the arrow in a food chain or food web mean?
a)
A series of steps in which organisms transfer (move) energy by eating and being eaten.
b)
An organism that breaks down wastes and dead organisms.
c)
Shows what eats what and consists of many food chains in an ecosystem
d)
The transfer (movement) of energy.
64.
What is the definition of the word carnivore?
a)
An organism that obtains energy by feeding on other organisms.
b)
An animal that eats only plants
c)
An animal that eats other animals
d)
An animal that eats both plants and animals
65.

Organisms that produce their own food mostly through photosynthesis (producers). Examples are plants and algae.

a)

Ominvore

b)

Detritivore

c)

Heterotroph

d)

Autotroph

66.

Organisms that get their energy and nutrition from other organisms (consumers).

a)

Heterotroph

b)

Autotroph

c)

Decomposer

d)

Detritivore

67.

Heterotrophs that get energy and nutrition from dead or decaying organisms or their waste products and recycle nutrients back to the ecosystem.

a)

Producer

b)

Trophic

c)

Decomposer

d)

Autotrooph

68.

The level in an Ecological pyramid that includes all the organisms that share the same place in a food chain.

a)

Trophic Levels

b)

Toxic Levels

c)

KeKe Levels

d)

Environmental Systems

69.

Which of these shows a possible food chain for an ecosystem?

a)

shark--> fish --> plankton -->sun

b)

sun --> plankton --> fish --> shark

c)

plankton --> sun --> fish --> shark

d)

plankton --> fish --> shark --> sun

70.
A collection of organisms that belong to different populations but all live in the same area and interact with one another.
a)
Population
b)
Ecosystem
c)
Community
d)
Ecosphere
71.
A place where an organism lives.
a)
Terrain
b)
Habitat
c)
Community
d)
Population
72.

A collection of organisms that make up a community as well as all of the nonliving components of the environment.

a)

Population

b)

Community

c)

Habitat

d)

Ecosystem

73.

The role or job of a species in a community.

a)

habitat

b)

diet

c)

niche

d)

ecosystem

74.

Two organisms that are so similar they can interbreed in nature and produce fertile offspring.

a)

biotic factor

b)

herbivore

c)

ecosystem

d)

species

75.
The temperate decisuous forest, the tropical rain forest, the desert, and the tundra are all examples of...
a)
the biopshere.
b)
biomes.
c)
ecosystems.
d)
communities.
76.
What is a group of ecosystems that share similar climates and types of organisms called?
a)
A community
b)
A biome
c)
An ecosystem
d)
A biosphere
77.
Antonio and Javier are astronauts in space looking back at Earth and discussing how all the life on Earth interacts with each other as well as the nonliving things. What level of organization are they discussing?
a)
A community
b)
A biome
c)
An ecosystem
d)
A biosphere
78.

Ecological Succession

a)

a common type of succession that occurs on a surface where an ecosystem has previously existed

b)

the first organisms to colonize any newly available area and begin the process of ecological succession

c)

a final and stable community

d)

a type of succession that occurs on a surface where no ecosystem existed before

e)

a gradual process of change and replacements of the types of species in a community

79.

Climax Community

a)

a common type of succession that occurs on a surface where an ecosystem has previously existed

b)

the first organisms to colonize any newly available area and begin the process of ecological succession

c)

a final and stable community

d)

a type of succession that occurs on a surface where no ecosystem existed before

e)

a gradual process of change and replacements of the types of species in a community

80.

What type of vegetation would you expect to find on newly formed volcanic islands

a)

lichens

b)

short grasses

c)

shrubs

d)

young trees

81.

Which of the following is an example of secondary succession?

a)

breaking down of bare rock by fungi and mosses

b)

pioneer plants begin to grow after glacial melting

c)

growth of plants after a forest is destroyed by fire

d)

appearance of weeds in cracks in a concrete surface

82.
Water moving over the land surface is called __________.
a)
rivers
b)
streams
c)
runoff
d)
None of the Above
83.
Carbon is part of __________.
a)
proteins
b)
fats
c)
carbohydrates
d)
all of the above
84.
The following are part of the carbon cycle EXCEPT _________.
a)
respiration
b)
precipitation
c)
decomposition
d)
photosynthesis
85.
Decomposition releases __________ into the soil
a)
hydrogen
b)
oxygen
c)
nitrogen
d)
helium
86.
Bacteria in soil change __________ into ingredients plants can use.
a)
H2
b)
O2
c)
N2
d)
He2
87.
Which of the following is NOT a "cycle"?
a)
Water
b)
Energy
c)
Nitrogen
d)
Phosphorus
88.
Decomposers break down detritus, also known as...
a)
dead organic matter
b)
inorganic matter
c)
living matter
d)
non-living matter
89.

Green plants and algae make their own food through photosynthesis. What is photosynthesis?

a)

a cell process that uses energy from sunlight to convert water and oxygen into food

b)

a cell process that uses energy from sunlight to convert water and glucose into food

c)

a cell process that uses energy from sunlight to convert water and chlorophyll into food

d)

a cell process that uses energy from sunlight to convert water and carbon dioxide into food

90.

Can organisms absorb nitrogen gas directly out of the atmosphere?

a)

Yes

b)

No

91.

How do animals obtain nitrogen stored in plants?

a)

Denitrifying bacteria

b)

Nitrogen fixing bacteria

c)

Directly from the atmosphere

d)

They eat the plants

92.

Where can you find carbon?

a)

Only in the Earth's atmosphere

b)

Inside all water molecules

c)

Inside the sun

d)

Inside every living thing on Earth

93.

Carbon moves from fossil fuels to the atmosphere when fuels are burned.

a)

True

b)

False

94.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)
Air
95.

The process in which water vapor is released into the air through the stoma on the leaves of plants is called __________.

a)

Evaporation

b)

Transpiration

c)

Precipitation

d)

Condensation

96.

Which of the following cycles lacks a gas phase? This means that the element does not exist in a gas phase.

a)

carbon

b)

nitrogen

c)

phosphorous

d)

none of the above

97.
When water moves downward through spaces in rock or soil it becomes __________.
a)
runoff
b)
a stream
c)
groundwater
d)
a lake
98.
Phosphorous is passed from plants to ____ who eat them
a)
plants
b)
animals
c)
scavengers
99.
What role do decomposers play in the phosphorous cycle?
a)
absorb phosphorous 
b)
release phosphorous into atmosphere
c)
return phosphorous into the soil
d)
combustion
100.
When humans burn fossil fuels, most of the carbon quickly enters the                       as carbon dioxide.
a)
Water
b)
Atmosphere
c)
Sun
d)

ground

101.
Cattle egrets forage (feed) in fields among cattle. The egret gets easy access to flying insects stirred up by the cattle, and the cattle don't care if they are there or not.
a)
mutualism
b)
commensalism
c)
competition
d)
parasitism
102.

A tapeworm lives in the intestine of a cat absorbing nutrients through its skin. A tapeworm and a cat have this type of relationship.

a)

mutualism

b)

parasitism

c)

commensalism

d)

competition

103.
What type of symbiosis?  Hummingbirds feed on nectar from flowers.  The flowers are pollinated by hummingbirds as they move from flower to flower.
a)
commensalism
b)
mutualism
c)
parasitism
d)
predation
104.
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
105.
Red-billed oxpeckers are birds that often feed on parasites that infest impala.  This is an example of _______.
a)
commensalism
b)
mutualism
c)
neutralism
d)
competition
106.
A relationship between two organisms in which both organisms benefit. 
a)
Mutualism 
b)
Competition
c)
Parasitsm 
d)
Commensalism 
107.
When a mosquito bites you, you are the __________ and the mosquito is the  ____________.
a)
host, hostess
b)
parasite, host
c)
host, parasite
d)
prey, predator
108.

Aphids are tiny insects that live on and eat the leaves of plants, removing vital nutrients from the plants.

a)

Predation

b)

Parasitism

c)

Commensalism

d)

Mutualism

109.

Clown fish live among anemones, acting as a lure for the sea anemone's prey. The clown fish get protection and shelter from the anemone. This is an example of which type of symbiosis?

a)

Commensalism

b)

Mutualism

c)

Parasitism

110.

A bee and a flower work together to benefit each other. This is an example of a ______. The bee helps the flower by pollinating it and the flower helps the bee by providing it with nectar.

a)

commensalistic relationship

b)

parasitic relationship

c)

mutualistic relationship

111.

Lichens are close associations of fungi and algae. The fungi hold the water supply and the algae perform photosynthesis to manufacture carbohydrates for both organisms.

a)

mutualism

b)

commensalism

c)

parasitism

112.
Barnacles create home sites by attaching themselves to whales. This relationship neither harms nor benefits the whales. 
a)
parasitism
b)
commensalism
c)
mutualism
113.
Two male Giraffes are fighting over the last green leaf of a tree that is dying.  
a)
Competition
b)
Mutualsim
c)
Predation
d)
Commensalism
114.
In a parasitic relationship, one organism is ___________ and one organism is benefiting. 
a)
helped
b)
harmed
c)
not effected
d)
happy
115.
A coyote captures, kills, and eats a rabbit. What type of symbiotic relationship is this?
a)
mutualism
b)
commensalism
c)
parasitism
d)
predation
116.
Limiting factors are sometimes helpful because they can keep the population from getting too large.
a)
True
b)
False
117.
Food, water, sunlight, shelter, and space are resources that are  __________.
a)
limiting factors
b)
wet
c)
messy
d)
found in rocks
118.
If the population of a certain predator increases, there is often _______ its prey
a)
a decrease the population of
b)
an increase of the population of 
c)
great news for its prey of
d)
no  impact found on
119.
Any thing or organism that regulates the size of a population of another organism is known as __________.
a)
a limiting measure
b)
a limiting factor
c)
factorization
d)
materialization of precipitation
120.
Lichens make good pioneer species because they secrete acid that breaks down rock. 
a)
True 
b)
False
121.
Cougars are predators that prey on weakened or diseased animals. This is the cougar's ____. 
a)
habitat
b)
community
c)
niche
d)
none of these
122.
What is the distinction between a zone of tolerance and a limiting factor? 
a)
Limiting factors are biotic or abioitc things that limit growth, range of tolerance defines the factors in which an organism can survive. 
b)
The Range of tolerances are biotic or abioitc things that limit growth, limiting factors defines the factors in which an organism can survive. 
c)
They define the same idea
d)
Both refer to the growth of species populations, limiting factors are only biotic factors, range of tolerance defines abiotic factors
123.
Compare primary and secondary succession. 
a)
Primary starts with soil. Secondary starts without soil. 
b)
Primary starts without soil, secondary starts with soil. 
c)
Primary starts with plants, secondary starts with animals
d)
Primary starts with animals. secondary starts with plants. 
124.
Which zone is considered the zone of physiological stress?
a)
Zone A
b)
Zone B
c)
Zone C
d)
Zone A & B
125.

An organism’s habitat provides _____________________.

a)

food, water, shelter, and space.

b)

food, water, and clothes.

c)

only food.

d)

video games, ninjas, and baked beans.

126.
Plants that grow after lichens that help to further break down rocks are called ______________________.
a)
lichens
b)
hardwoods
c)
mosses
d)
pines
127.
How do lichens contribute to primary succession?
a)
Lichens decompose organic matter from animals and plants
b)
Lichens begin to break down rock to form soil
c)
Lichens are nitrogen fixing bacteria
d)
Lichens convert carbohydrates into fossil fuels.
128.
__________ succession is more likely to take thousands of years before trees are seen.
a)
Old field
b)
Ecological
c)
Primary
d)
Secondary
129.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
130.
The picture shows what type of succession?
a)
primary
b)
secondary
c)
tertiary
d)
quadanary
131.
The varying conditions of one environmental factor in which an organism can survive
a)
Chlorophyll
b)
Controlled environment
c)
Range of tolerance
d)
Dominant plant

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