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EA6: Homework week ending 3.08.20

Total questions: 60

Worksheet time: 40mins

Name
Class
Date
1.
A habitat is the place where an animal lives. Which animal's habitat is probably not in the desert?
a)
an insect
b)
lizard
c)
desert rat
d)
bear
2.
How does a bird "change its environment" to meet its NEEDS?
a)
builds a nest
b)
flies around
c)
catches bugs
d)
looks for something to eat
3.
6. A squirrel makes a change to its environment when it —
a)
climbs a tree
b)
digs a hole to bury an acorn
c)
collects acorns
d)
jumps from tree to tree
4.
What do scientist call organisms that are not native to an ecosystem and cause harm to native organisms?
a)
native plants
b)
invaders
c)
invasive species
d)
natural species
5.
Which of the following activities has a positive effect on the environment?
a)
recycling
b)
deforestation
c)
pollution
6.
When a certain population becomes so dense that it harms or changes the quality of life in that environment, we have...
a)
a population
b)
overpopulation
c)
pollution
7.
A ______________ is the place where an organism lives.
a)
adaptation
b)
equilibrium
c)
population
d)
habitat
8.
Which is NOT an example of a natural environmental change?
a)
a beaver dam
b)
a hurricane
c)
a volcanic eruption
d)
a housing development
9.
When the last member of a species dies, the species becomes
a)
extinct
b)
endangered
c)
threatened
d)
dead
10.
What is niche?
a)
The job an animal has within its population.
b)
The job a plant has in its community.
11.
An organism that feeds on other organisms
a)
consumer
b)
producer
c)
decomposer
d)
organism
12.
A living thing
a)
organism
b)
organic
c)
decomposer
d)
producer
13.
Organism that makes its own food
a)
organism
b)
product
c)
decomposer
d)
producer
14.
Which organism do the owl and the weasel compete for in the food web?
a)
Hawk
b)
Spider
c)
Grasshopper
d)
Shrew
15.

Why would humans cut down forests?

a)

to build roads

b)

to build buildings

c)

to build factorys

d)

all of the above

16.

Positively, what is the effect of people cutting down forests?

a)

wildlife loses their home

b)

people get shelter by building homes

c)

there is more carbon dioxide in the atmosphere

d)

the soil gets eroded

17.

Negatively, what is the effect of people cutting down forests?

a)

people build roads to connect to each other

b)

people build houses to get shelter

c)

wildlife loses their homes

d)

people build buildings for offices

18.
Organisms that make up the living part of an ecosystem.
a)
abiotic
b)
biotic factors
c)
ecology
d)
ecosystems
19.
Nonliving things found in an ecosystem.
a)
factories
b)
factor trees
c)
biotic factors
d)
abiotic factors
20.

The variety of life in an ecosystem.

a)

Pioneer Species

b)

Biodiversity

c)

Abiotic Factors

d)

Producers

21.

The population limit in an ecosystem due to limited resources or predators.

a)

Biodiversity

b)

Biotic factors

c)

Abiotic factors

d)

Carrying capacity

22.

Populations that normally live in an ecosystem: endemic, indigenous.

a)

Native Species

b)

Biotic Potential

c)

Carrying Capacity

d)

Pioneer Spcies

23.

Populations that are introduced to an area and “take over.”

a)

Abiotic Population

b)

Biotic Potential

c)

Native Species

d)

Invasive species

24.

Disturbances to the ecosystem caused by natural events or human activities or accidents with a permanent impact.

a)

Environmental Capacity

b)

Abiotic Potential

c)

Biodiveristy

d)

Environmental Changes

25.

Possible negative impacts on an ecosystem from natural events or human activities or accidents.

a)

Biodiveristy

b)

Environmental Impact

c)

Carrying Capacity

d)

Ecological Potential

26.

Any single living individual, and can refer to a single human, animal, plant, protista, bacteria, or fungi.

a)

Organ System

b)

Biome

c)

Population

d)

Organism

27.

Organisms who are members of the same species in an ecosystem.

a)

Population

b)

Community

c)

Organism

d)

Biodiversity

28.

Natural disasters can also change ecosystems. What can organisms do if a disaster happens?

a)

Fight, Survive, Struggle

b)

Move, Adapt, Die

c)

Stay, Sleep, Survive

d)

Eat, Sleep, Repeat

29.
What is a drought?
a)
Not enough rain
b)
Too much rain.
c)
Too much people using water
d)
Strong winds
30.
What would cause a decrease in the rabbit population?
a)
An increase in grass growing
b)
A decrease in caterpillars
c)
An increase in owls
d)
An increase in fox
31.
An example of a natural change to the ecosystem is:
a)
A highway built in the middle of the desert. 
b)
Lightening strikes and starts a fire in the forest. 
c)
A rancher placing too many grazers in a small area leading to overgrazing.
32.

the parts of an ecosystem that have NEVER been living and NEVER will be; examples include the sun, water, air, soil, weather conditions, and rocks

a)

nonliving (abiotic)

b)

living (biotic)

c)

terrarium

d)

essential

33.

to change or modify

a)

native species

b)

alter

c)

disrupt

d)

thrive

34.

to grow and survive

a)

disrupt

b)

habitat

c)

thrive

d)

global warming

35.

In a pond ecosystem, what would happen to frogs if the insect population decreased?

a)

There would be more frogs in the pond

b)

There would be more insects in the pond

c)

There would be less frogs in the pond

d)

More fish would move to the pond

36.

If the population of prey increases, the population of predators will ________because of the availability of food.

a)

decrease

b)

stay the same

c)

increase

37.

What is one way an animal can change the ecosystem?

a)

Chipmunks can hibernate through winter

b)

Arctic foxes fur changes from brown to white in the winter

c)

Geese migrate to lay their eggs

d)

Beavers build a dam on a stream to create their homes

38.
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
39.
_______________ is a stable, balanced, or unchanging system.
a)
biodiversity
b)
ecosystem
c)
equilibrium
d)
habitat
40.
An organism that eats another organism.
a)
Autotroph
b)
Heterotroph
c)
Plant
d)
Producer
41.
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.
42.
Only eats plants
a)
omnivore
b)
carnivore
c)
herbivore
d)
tertiary consumer
43.
An animal that gets energy from eating both plants and animals is a(an) _____________.
a)
herbivore
b)
carnivore
c)
omnivore
d)
autotroph
44.
An organism that gets energy from eating other organisms is a ______________.
a)
producer
b)
consumer
c)
decomposer
d)
prey
45.
Makes its own food
a)
autotroph
b)
heterotroph
c)
herbivore
d)
biomass
46.
Where do producers get their energy? 
a)
soil
b)
decomposers
c)
sun
d)
garbage
47.
Where does the LETTUCE get its energy?
a)
The sun
b)
The slug
c)
The bird
d)
The cat
48.
The amount of energy transferred from a lower trophic level to the next highest level is about
a)
1%
b)
10%
c)
100%
d)
1000%
49.
Which trophic level has the most energy available? 
a)
Producers 
b)
Primary Consumers
c)
Tertiary Consumers
d)
Quaternary Consumers
50.
In an energy pyramid, energy_______ as you move up the pyramid.
a)
Increases
b)
Decreases
c)
Stays the same
d)
Changes up and down
51.
Process through which plants make their own food
a)
autotroph
b)
producer
c)
photosynthesis
d)
biomass
52.
Cannot make its own food
a)
heterotroph
b)
autotroph
c)
producer
d)
plant
53.
Position that an organism occupies based on what it eats
a)
biomass
b)
autotroph
c)
trophic level
d)
carnivore
54.
Living organic matter
a)
trophic level
b)
photosynthesis
c)
herbivore
d)
biomass
55.
How much energy is lost when organisms consume another organism from a different level? 
a)
90%
b)
20%
c)
50%
d)
10%
56.
What non living things determines the kinds of organisms that live in ecosystems?
a)
Sun and producers
b)
Water and air
c)
Air and consumers
d)
Water and decomposers
57.
Water is an example of...
a)
Biotic Factor
b)
Abiotic Factor
58.
All living things are biotic
a)
True 
b)
False
59.
How does too much fishing in an area affect its ecosystem?
a)
The fish will lay many more eggs to replace fish caught
b)
organisms that eat fish could become endangered due to starvation
c)
organisms that eat the fish will become endangered
d)
people could eat too many fish and become ill
60.
What would most likely happen if an ecosystem no longer received sunlight?
a)
The number of herbivores would increase
b)
The number of plants would increase
c)
all organisms would adapt
d)
All living organisms would eventually die

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