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Unit 7 Recap

Total questions: 45

Worksheet time: 32mins

Name
Class
Date
1.

Both living and nonliving things interacting within a defined area makes up a(n) _____________.

a)

Organism

b)

Population

c)

Community

d)

Ecosystem

2.
Another word for a living thing is a:
a)
animal
b)
organism
c)
plant
d)
community
3.

What non-living factor is the most important for an ecosystem to work?

a)

Rock

b)

Sun

c)

Plants

d)

Animals

4.

A living thing can move, breathe and reproduce.

a)

True

b)

False

5.

A Non-Living thing can move reproduce and breathe.

a)

False

b)

True

6.
All living things use energy.
a)
True.
b)
False.
7.
Is fire living, nonliving, or once alive? 
a)
Once Alive
b)
Nonliving
c)
Alive
d)
None of the above
8.
Is lightning living, nonliving, or once alive? 
a)
Living
b)
Nonliving
c)
Once alive
d)
None of the above
9.
Is bacteria living, nonliving, or once alive? 
a)
Living
b)
Nonliving
c)
Once alive
d)
None of the above
10.
How do we know that coral is alive? 
a)
It grows.
b)
It reproduces.
c)
It uses energy. 
d)
All of the above. 
11.
How do we know that a seed is alive? 
a)
It grows and develops. 
b)
It comes from the Earth. 
c)
It has a protective shell. 
d)
They are often carried by the wind. 
12.

Many animals in an ecosystem depend on other animals for —

a)

shelter

b)

water and air

c)

energy

d)

support

13.

Plants are interacting directly with another living component of their environment when they are–

a)

attracting insects.

b)

absorbing sunlight.

c)

soaking up water.

d)

taking in carbon dioxide.

14.

Many plants depend on insects for pollination. Without pollination, these plants cannot produce seeds. Plants depend on insects to —

a)

grow new leaves

b)

strengthen roots

c)

make more food

d)

produce offspring

15.

Frogs in a pond interact with both living and nonliving components in their ecosystem. Frogs interact with nonliving components when they–

a)

eat swimming insects for energy.

b)

lay their eggs in bodies of water.

c)

become food for another animal.

d)

hide beneath plants in the pond.

16.

All of the following are examples of living things interacting with each other EXCEPT —

a)

birds preying on insects living in the grass

b)

squirrels spreading the seeds of trees by burying them

c)

fish eating plants and other smaller fish

d)

frogs sleeping in the mud at the bottom of the pond

17.

Plants interact with living and nonliving components in their environment. Which is an interaction with a nonliving component?

a)

Small insects eating the stems of plants

b)

Humans breathing oxygen released by plants

c)

Sandy soil holding the roots of plants

d)

Bees gathering pollen from flowers of plants

18.

Which of the following is a question that could be asked in a scientific investigation of how organisms depend on their environment?

a)

What is the effect of rainfall on the growth of grasses?

b)

How does temperature affect the formation of soil?

c)

What time of day produces the most precipitation?

d)

How fast does water erode different types of rock?

19.
Which of the following organisms is a herbivore.
a)
butterfly
b)
snake
c)
fox
d)
ladybird
20.
Which of the following organisms is a carnivore.
a)
greenfly
b)
titmouse
c)
mouse
d)
buzzard
21.
The owl receives energy from which organisms?
a)
grasshopper and mouse
b)
mouse and rabbit
c)
rabbit and butterfly
d)
butterfly and frog
22.
Which organism is the top predator in this food web?
a)
leopard seal
b)
killer whale
c)
elephant seal
d)
crabeater seal
23.
How many predators does the squid have?
a)
1
b)
2
c)
3
d)
4
24.
Name the producers in this food web.
a)
seagull and fish
b)
penguin and crab
c)
phytoplankton and seaweed
d)
seaweed and zooplankton
25.
The krill is eaten by which consumer?
a)
blue whale
b)
phytoplankton
c)
leopard seal
d)
penguin
26.
Which consumer receives energy from the leopard seal?
a)
blue whale
b)
penguin
c)
killer whale
d)
elephant seal
27.
What type of consumer is the shrew?
a)

Primary

b)

Secondary

c)

Tertiary

d)

Apex Predator

28.
Which one is NOT an example of a decomposer?
a)
mushroom
b)
leaves
c)
mold
d)
worm
29.
Grass is considered a ...
a)
consumer
b)
producer
c)
decomposer
d)
composers
30.
Coral make hard outer skeletons to protect their bodies. Over time, these outer skeletons can build up to make large coral reefs. How does the formation of a coral reef change the ocean ecosystem?
a)
It make the ocean water saltier.
b)
It removes sand from the ocean floor.
c)
it creates a habitat for some ocean animals.
d)
It takes away space for other animals' habitats.
31.
Which of the following organisms have the greatest effect on an ecosystem because of the changes they make to their environment?
a)
Bees building a hive in a hollow tree.
b)
Wasps building a nest in a leafy bush.
c)
Beavers building a dam across a stream.
d)
They all have the same impact on the environment.
32.
Which fact below is an example of the fiddler crab changing its environment to meet its need?
a)
It moves sideways.
b)
It digs burrows in the ground to hide.
c)
It sheds its shells as it grows.
d)
All of the above.
33.
Which fact below about the Painted Redstart bird best describes the way the bird changes its environment to meet its need?
a)
It builds its nest on hillsides covered with dense vegetation.
b)
It usually raises one group of young each year.
c)
It hunts for insects and spiders on plant leaves.
d)
It feeds on sugar water and peanut butter at feeders.
34.
Pupfish have been living in a saltwater lake for thousands of years. over time, the lake has been slowly getting smaller. Which of the following is most likely to happen as a result of the lake shrinking?
a)
There will be more pupfish because there will be plenty of space for them.
b)
There will be fewer pupfish because there will not be enough space for them.
c)
The lake will become saltier because more pupfish will grow.
d)
The lake will become less salty because fewer pupfish will grow.
35.
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
36.

Invasive species have a negative impact on...

a)

the ecosystem

b)

the economy (money)

c)

Both the ecosystem and the economy

d)

None of these

37.

What do invasive species do to the habitat they move into?

a)
crowd out local plants and animals
b)
eat all the mice and deer
c)
create a food chain
38.

What's one problem with the pythons preying on all the small animals in the Everglades?

a)

other animals can't find any food

b)

the grass can't grow as fast

c)

the deer have nothing to eat

d)

plants can't photosynthesize

39.
Why do the populations of invasive species grow so quickly? 
a)
Invasive Species are native to an area. 
b)
Invasive species are prey to many animals.
c)
Invasive species have no predators.
d)
Invasive species keep the ecosystems in equilibrium.
40.

Land clearing for crops and development destroy...

a)

Wildlife

b)

Desert

c)

cars

d)

Islands

41.

A fire destroys all of the trees and plants in the forest. How might this affect the birds in the area?

a)

The birds will plant seeds and grow new trees.

b)

The birds will have more food to eat.

c)

The birds will have no place to build their homes.

42.

Changes to an environment may make it more difficult for an organism to find-

a)

food.

b)

shelter.

c)

water.

d)

all of the above

43.

When changes to an environment happen, animals-

a)

move.

b)

perish.

c)

adapt.

d)

all of the above

44.

Pacman frogs live in South America. Some of their traits are listed here. What habitat change might be harmful for a Pacman frog?

a)

Heavy rains in the afternoons over a period of days

b)

An increase in population of several kinds of birds

c)

A change in weather, leading to cooler temperatures

d)

The introduction of a new species that eats rodents

45.

Which of the following gives an example of how birds modify their environment to meet their needs?

a)

Birds use twigs to build a nest.

b)

Birds hatch eggs and feed their young.

c)

Birds breathe air and drink water.

d)

Birds find food.

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