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Life Science Check In Review

Total questions: 25

Worksheet time: 23mins

Name
Class
Date
1.

Why can unicellular organisms survive without the help of other cells?

a)

their cells are larger than cells of other organisms

b)

they can carry out all life processes in one cell

c)

they have adapted to their environment

d)

they are multi-celled

2.

Which is NOT an inherited trait?

a)

eye shape

b)

nose shape

c)

freckles

d)

favorite food

3.

Which best compares the respiratory system to the circulatory system?

a)

The respiratory system transports oxygen to cells, while the

circulatory system provides oxygen for cells.

b)

The respiratory system provides oxygen for cells, while the circulatory

system transports oxygen to cells.

c)

The respiratory system breaks down food for cell energy, while the

circulatory system rids the body of waste.

d)

The respiratory system rids the body of waste, while the circulatory

system breaks down food for cell energy.

4.

Algae are unicellular organisms found near the surface of bodies of water. What are these single-celled organisms able to do?

a)

get energy they need without the help of other cells

b)

group together with other algae to help each other survive

c)

survive without getting energy

d)

get energy from other organisms to survive

5.

How are estuaries and salt marshes similar?

a)

They both contain only freshwater.

b)

They are both larger than an ocean.

c)

They both have a variety of vegetation.

d)

They are both unaffected by the changing tides.

6.

Which do an estuary and a salt marsh have in common?

a)

Both are freshwater that is affected by tides.

b)

Both are freshwater that is not affected by tides.

c)

Both are freshwater mixed with salt water that are affected by tides.

d)

Both are freshwater mixed with salt water that are not affected by

tides.

7.

A litter of kittens have traits that are similar to both the mother cat and

the father cat. Which best explains this situation?

a)

The kittens are provided the same kind of milk from their mother as

they grow.

b)

The kittens inherit some of their traits from their mother and some

from their father.

c)

The kittens are kept at the same temperatures by their mother when

they are first born.

d)

The kittens are taught by their parents to have similar traits.

8.

A simple food chain includes hawks, lizards, and insects. Which will most

likely happen to the lizard and hawk populations if a pesticide is sprayed

to kill the insects, and the lizard and hawk populations cannot find other

food in this ecosystem?

a)

Both the lizard population and the hawk population will increase.

b)

Both the lizard population and the hawk population will decrease.

c)

The lizard population will increase, but the hawk population will

decrease.

d)

The lizard population will decrease, but the hawk population will

increase.

9.

In a food chain, foxes are consumers of rabbits and mice. If the mice

population suddenly decreases, what will most likely happen to the

number of foxes?

a)

The number of foxes will increase because they will eat fewer rabbits.

b)

The number of foxes will stay the same because they will eat more

rabbits.

c)

The number of foxes will decrease because they will be eaten by the

rabbits.

d)

The number of foxes will decrease because they will only have one

remaining food source.

10.

Why do the same kinds of flowers have the type of petals?

a)

They inherit their petals from their parent plants.

b)

They are fed the same plant food.

c)

They get the same amount of sunlight.

d)

They grow in the same ecosystem.

11.

How are rabbits and lions both classified?

a)

as decomposers

b)

as consumers

c)

as carnivores

d)

as producers

12.

Which two systems work together to bring in things we need from the environment for survival?

a)

respiratory and muscular

b)

digestive and skeletal

c)

circulatory and respiratory

d)

respiratory and digestive

13.

A boy has freckles and is tall. He has dark hair, and he speaks English.

Which characteristic was not inherited from the boy's parents?

a)

freckles

b)

height

c)

dark hair

d)

speaking English

14.

Which organism is a producer?

a)

oak tree

b)

frog

c)

fungi

d)

snake

15.

Why does a human require specialized cells to live?

a)

Specialized cells allow humans to adapt to changes in their

environment.

b)

Human bodies have systems that require cells with different

functions.

c)

Specialized cells allow for all life processes to occur in one cell.

d)

Human bodies are simple and require few cells.

16.

Which characteristic do single-celled organisms and multicellular

organisms have in common?

a)

Both have cells with specialized functions for each life process.

b)

Both perform all life processes within one cell.

c)

Both have a way to get rid of waste materials.

d)

Both are able to make food from sunlight.

17.

Which system produces red blood cells?

a)

skeletal

b)

nervous

c)

digestive

d)

circulatory

18.

Why do offspring look different from their parents?

a)

The way an offspring looks does not depend on its parents.

b)

Half of an offspring's DNA comes from each parent.

c)

An offspring inherits more DNA from one parent than the other.

d)

An offspring inherits less DNA from one parent than the other.

19.
Which is most responsible for recycling dead plants and animals in an ecosystem? 
a)
water 
b)
bacteria 
c)
fish
d)
insects
20.
How would the woodpecker population in a forest area most likely be affected if a housing development is built in that area?
a)
They would produce more offspring. 
b)
They would change the color of their feathers. 
c)
They would experience a decrease in available food. 
d)
They would experience a decrease in competition. 
21.
Matt is a tall, eleven-year-old boy. He has a scar on his right cheek. He is intelligent and an excellent drummer. Which of his traits did he most likely inherit?
a)
his height 
b)
his scar on his right cheek 
c)
his intelligence 
d)
his ability to play the drums 
22.
Which characteristic would a child not inherit from one or both of its parents? 
a)
freckles
b)
hair style
c)
eye color 
d)
dimples 
23.
Which characteristic do single-celled organisms and multicellular organisms have in common? 
a)
Both have cells with specialized functions for each life process.
b)
Both perform all life processes within one cell. 
c)
Both have a way to get rid of waste materials. 
d)
Both are able to make food from sunlight. 
24.
Which example best shows structures that make up the digestive system in the human body? 
a)
heart, blood, vessels
b)
nose, trachea, lungs 
c)
brain, spinal cord, nerves 
d)
esophagus, stomach, intestines 
25.
Which is a characteristic of a dog that is most likely a result of its environment? 
a)
its color 
b)
its length of ears 
c)

its ability to speak on command

d)
its ability to see in the dark