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NCCI STUDY

Total questions: 115

Worksheet time: 2hrs 5mins

Name
Class
Date
1.
Which is an example of a single-celled organism?
a)
amoeba
b)
insect
c)
fish
d)
worm
2.
Why do multicellular organisms need transport systems?
a)
Most have cells that are unable to grow and survive in their environment.
b)
Most have cells that are not able to exchange gases with the outside
environment.
c)
Most have cells that need food from sources outside their environment.
d)
Most have cells that require more energy to survive than single-celled
organisms.
3.
Which is a function of the cardiovascular system?
a)
to move water throughout the body
b)
to provide structural support for the body
c)
to eliminate waste from the body
d)
to transport gases throughout the body
4.
Which body system sends electrical signals to all other body systems?
a)
circulatory system
b)
digestive system
c)
muscular system
d)
nervous system
5.
Which statement best describes a bacterial cell?
a)
It contains more than one cell.
b)
It is a complete organism.
c)
It is part of a larger organism.
d)
It contains different kinds of cells.
6.
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.
7.
Which system of the human body provides protection to most of the major organs?
a)
skeletal system
b)
circulatory system
c)
respiratory system
d)
muscular system
8.
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
9.
A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?
a)
size of the cells of the organism
b)
what the organism eats
c)
how many types of cells are in the organism
d)
how fast the organism grows
10.
Which body system processes foods into a useable source of energy?
a)
circulatory
b)
digestive
c)
nervous
d)
skeletal
11.
Which is an example of a single-celled organism?
a)
amoeba
b)
insect
c)
fish
d)
worm
12.
Why do multicellular organisms need transport systems?
a)
Most have cells that are unable to grow and survive in their environment.
b)
Most have cells that are not able to exchange gases with the outside
environment.
c)
Most have cells that need food from sources outside their environment.
d)
Most have cells that require more energy to survive than single-celled
organisms.
13.
Which is a function of the cardiovascular system?
a)
to move water throughout the body
b)
to provide structural support for the body
c)
to eliminate waste from the body
d)
to transport gases throughout the body
14.
Which body system sends electrical signals to all other body systems?
a)
circulatory system
b)
digestive system
c)
muscular system
d)
nervous system
15.
Which statement best describes a bacterial cell?
a)
It contains more than one cell.
b)
It is a complete organism.
c)
It is part of a larger organism.
d)
It contains different kinds of 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 of the human body provides protection to most of the major organs?
a)
skeletal system
b)
circulatory system
c)
respiratory system
d)
muscular system
18.
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
19.
A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?
a)
size of the cells of the organism
b)
what the organism eats
c)
how many types of cells are in the organism
d)
how fast the organism grows
20.
Which body system processes foods into a useable source of energy?
a)
circulatory
b)
digestive
c)
nervous
d)
skeletal
21.

Which of the following is are part of your nervous system?

a)

spinal cord

b)

nerves

c)

bones

d)

brain

22.

Which is not true of your muscles?

a)

Muscles are part of your muscular system.

b)

Muscles give your body shape.

c)

Muscles are made of stretchy cells.

d)

Muscles work in pairs because they can only pull.

23.

The circulatory system is made of

a)

blood vessels

b)

bones

c)

lungs

d)

heart

24.

The graphic belongs to which body system?

a)

nervous system

b)

respiratory system

c)

digestive system

d)

circulatory system

25.

This complex organ is the control center of our body.

a)

nerves

b)

heart

c)

brain

d)

intestines

26.

The circulatory system is also called the

a)

cardiovascular system

b)

fitness system

c)

respiratory system

d)

heart pumping system

27.

This system carries nutrients from food and oxygen to your body and carries carbon dioxide wastes away from your cells.

a)

respiratory system

b)

circulatory system

c)

nervous system

d)

digestive system

28.

Your mouth, intestines, esophagus, and stomach belong to

a)

respiratory system

b)

digestive system

c)

circulatory system

d)

waste system

29.

We use these organs to breath.

a)

lungs

b)

heart

c)

trachea

d)

esophagus

30.

This system takes in the oxygen we need and releases carbon dioxide wastes.

a)

digestive system

b)

excretory system

c)

respiratory system

d)

lung system

31.

Why is your spinal cord important?

a)

It gives us shape.

b)

It connects our nerves to our brain.

c)

It helps carry messages to and from our bodies.

d)

It begins the process of digestion.

32.

Why is our skeletal system important?

a)

It protects vital organs in our body.

b)

It gives our bodies a framework (shape).

c)

Red blood cells are produced in our bones.

33.

An organism can only be seen through a microscope. Which is most likely true of that organism?

a)

It is a plant.

b)

It is an animal.

c)

It is multicellular.

d)

It is single-celled.

34.

Which best describes how single-celled and multicellular organisms are similar?

a)

Both require energy to survive.

b)

Both require fresh water to survive.

c)

Both require direct sunlight to survive.

d)

Both rely on many other cells to survive.

35.

How are rabbits different from bacteria?

a)

Rabbits need only a single cell to complete all life functions while bacteria need multiple cells to survive.

b)

Rabbits need multiple cells to complete all life functions while bacteria only need a single cell to survive.

c)

Rabbits need multiple cells to complete all life functions while bacteria do not need any cells to survive.

d)

Rabbits complete all life functions with one single cell while bacteria do not need any cells to survive.

36.

Which best explains how a single-celled organism can survive without other cells?

a)

They do not need any substance from outside of the cell.

b)

They are able to perform all necessary functions within one cell.

c)

They do not need to perform more than one function to survive.

37.

Fungi and bacteria are both single-celled organisms. What do they most likelyhave in common?

a)

Both fungi and bacteria are large organisms.

b)

Both fungi and bacteria can carry out all life functions in their one cell.

c)

Both fungi and bacteria need sunlight and nutrients from the soil to be able to grow.

d)

Both fungi and bacteria are highly specialized to do only one job so they must work with other cells to obtain food.

38.

What is the main purpose of single-celled organisms?

a)

to survive

b)

to reproduce

c)

to produce food for other organisms

d)

to work with other single-celled organisms

39.

Sue and Allie read about different kinds of organisms. They read about an organism with a respiratory system, digestive system, skeletal system, and muscular system. Which can Sue and Allie most likely conclude about this organism?

a)

The organism is unicellular.

b)

This organism is microscopic.

c)

The organism is multicellular.

d)

The organism does not have any cells.

40.

How are algae able to survive?

a)

The algae get energy from other algae.

b)

The algae do not require energy to survive.

c)

The single cell controls all the algae’s life processes.

d)

Other multi-celled organisms provide food for the algae.

41.

Which statement best describes a bacterial cell?

a)

It contains more than one cell.

b)

It is a complete organism.

c)

It is part of a larger organism.

d)

It contains different kinds of cells.

42.

Which best describes a single-celled organism?

a)

a small group of organisms

b)

a small organism with a variety of parts

c)

an organism that relies on other organisms to survive

d)

an organism that is able to carry out all its life processes

43.

How does an ant benefit from being a multicellular organism?

a)

Ants have one specialized cell that performs a variety of tasks necessary for life.

b)

Ants perform a variety of tasks to be able to survive so they need many specialized cells.

c)

Ants have one type of cell and this cell performs the same task to help them survive.

d)

Ants are small organisms but depend on only two different types of cells to help them survive.

44.

Which is an example of multi-celled organisms?

a)

amoeba

b)

bacteria

c)

crickets

45.

A scientist is trying to decide whether an organism is unicellular or multicellular. Which information would help the scientist most to make her decision?

a)

size of the cells of the organism

b)

what the organism eats

c)

how many types of cells are in the organism

d)

how fast the organism grows

46.

Which best explains why humans are multicellular organisms?

a)

Human cells are too small to function alone.

b)

Human cells join together to form one large cell.

c)

Humans need many cells to carry out life processes.

d)

Humans have many systems that perform the same function.

47.

In what way are both humans and bacteria the same?

a)

Both are living things.

b)

Both are non-living things.

c)

Both are multicellular organisms.

d)

Both are single-celled organisms.

48.

a living thing that gets energy by breaking down wastes and dead plants and animals

a)

producers

b)

consumers

c)

decomposers

49.

A hawk flies low over the grassland, hunting for a prairie dog. Which organism is the predator?

a)

the hawk

b)

the prairie dog

c)

neither are the predators

50.

Which is an example of a food chain?

a)

grass, rabbit, snake, owl

b)

rabbit, grass, snake, owl

c)

grass, fox, mouse, owl

51.

Terrestrial ecosystems means land ecosystems.

a)

true

b)

false

52.

A deer eats grass and leaves from bushes and trees. What kind of consumer is a deer?

a)

herbivore

b)

omnivore

c)

carnivore

53.

Which aquatic system listed below is an example of brackish water?

a)

Lake

b)

Pond

c)

Ocean

d)

Estuary

54.

Living things that get energy by eating

a)

producer

b)

consumer

c)

decomposer

55.

Terrestrial ecosystems include forest, rainforest, grasslands, deserts, tundra, and oceans.

a)

true

b)

false

56.

living things that make their own food

a)

producer

b)

consumer

c)

decomposer

57.

Which statement below best describes an ecosystem?

a)

an area with lots of plants and animals

b)

a natural environment

c)

an area made of living and non-living things

d)

an animal's habitat

58.

What is the producer's role in a food chain?

a)

To make their own food using the sun's energy

b)

To hunt other animals for food.

c)

to break down waste and dead plants

d)

to eat both plants and animals

59.

What model is used to show how food chains connect to one another?

a)

energy pyramid

b)

food web

c)

ecosystem drawing

d)

herbivore

60.

Forests and grasslands are both examples of terrestrial ecosystems. Which best describes the differences between forests and grasslands?

a)

Forests have more trees but usually less rain than grasslands.

b)

Grasslands have more trees but usually less rain than forests.

c)

Forests have more trees and usually more rain than grasslands.

d)

Grasslands have less trees but more rain than forests.

61.

Which statement is true?

a)

The sun is only important to the plant community.

b)

The sun is important to all parts of an ecosystem.

c)

The sun is only important during winter months.

d)

The sun is only important summer months.

62.

Which best describes the role of a tiny plant in a coral reef ecosystem?

a)

It is the start of many coral reef food chains.

b)

It provides food and shelter to large predators.

c)

It must get food energy from a source other than the sun.

d)

It is a direct source of energy for all of the animals in the ecosystem

63.

Which two ecosystems are aquatic?

a)

estuaries and forests

b)

forests and grasslands

c)

saltwater marshes and estuaries

d)

saltwater marshes and tropical rainforests

64.

Layla’s class is studying ecosystems. Her teacher gave the description below.


“This ecosystem would support trees if it got enough rain. Little precipitation and thin soil make it difficult for this ecosystem to support many trees.”


Which ecosystem does this scenario best describe?

a)

estuary

b)

grassland

c)

marsh

d)

forest

65.

Which best explains why an ecosystem can support a variety of organisms?

a)

Each organism takes care of itself.

b)

The organisms are in constant competition.

c)

The organisms give off carbon dioxide the producers need.

d)

Each organism contributes something to help the other organisms survive.

66.
Which terrestrial ecosystem has warm, humid conditions and a large variety of plants and animals?
a)
estuary
b)
grassland
c)
deciduous forest
d)
tropical rainforest
67.
Which can be concluded about the trees that grow in a temperate deciduous forest?
a)
The trees require constant direct sunlight to survive
b)
The trees grow only during the warm months of the year
c)
The trees have adapted to survive the change of seasons
d)
The trees are unable to grow in climates that have constant rainfall
68.
Which marine ecosystem would be best for organisms that can adapt to both salt water and fresh water?
a)
Estuary
b)
Lake
c)
Pond
d)
River
69.
Which ecosystem contains the largest mammals?
a)
ocean
b)
pond
c)
river
d)
swamp
70.
A scientist took pictures of a deer, a black bear, and a squirrel in the wild.  In which ecosystem did the scientist most likely take the pictures?
a)
estuary
b)
forest
c)
grassland
d)
salt marsh
71.
Which ecosystem has the greatest biodiversity?
a)
grassland
b)
desert
c)
ocean
d)
lake
72.
Which lists animals that live in an aquatic ecosystem?
a)
black bear, deer, vole
b)
ducks, turtles, amphibians
c)
panthers, monkeys, snakes
d)
prairie dogs, bison, grasshoppers
73.
Which ecosystem has lifeforms most similar to those of the ocean?
a)
estuary
b)
lake
c)
pond
d)
swamp
74.
Which factor is abundant in a forest but limited in a grassland?
a)
condensation
b)
evaporation
c)
precipitation
d)
transpiration
75.

Which organism is a producer?

a)

apple tree

b)

butterfly

c)

mushroom

d)

fox

76.

In a food chain hawks consume snakes and mice. If the mouse population

stays the same, but the snake population decreases, what could happen

to the number of foxes?

a)

The number of foxes could decrease because they will eat fewer mice

b)

The number of foxes could increase because they will only have mice to

eat.

c)

The number of foxes could decrease because they will compete more for

available food.

d)

The number of foxes could increase because they will compete less for

available food.

77.

A local park has a lake with green algae floating in it. What is the role of the algae in this aquatic ecosystem?

a)

decomposer

b)

omnivore

c)

consumer

d)

producer

78.

Which is an example of a consumer eating another consumer in an grassland

ecosystem?

a)

A fox eating a rabbit

b)

A rabbit eating grass

c)

An earthworm eating decaying leaves

d)

A mouse eating seeds

79.

How are bison and wolves classified?

a)

as decomposers

b)

as carnivores

c)

as producers

d)

as consumers

80.

Which ecosystem would most likely be home to crabs and oysters?

a)

estuary

b)

forest

c)

grassland

d)

lake

81.

Which two ecosystems are most similar to one another?

a)

grassland and forest

b)

pond and lake

c)

ocean and forest

d)

desert and pond

82.

In which ecosystem can you find a mix of salt water and freshwater?

a)

estuaries

b)

lakes

c)

oceans

d)

ponds

83.

Which best describes a difference between estuaries and ponds?

a)

Ponds flow into the ocean and estuaries do not.

b)

Ponds have salt water and estuaries have brackish water.

c)

Ponds are freshwater and estuaries are brackish water.

d)

Ponds are affected by tides and estuaries are not.

84.

5.Why are salt marshes and estuaries important for ocean life?

a)

They minimize damage to oceans during hurricanes.

b)

They filter salt out of river water before it enters the oceans.

c)

They provide safe, nutrient-rich breeding areas for ocean organisms.

d)

They increase the amount of sediment able to settle on the ocean

floor.

85.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

86.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

87.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

88.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

89.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

90.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

91.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

92.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

93.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

94.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

95.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

96.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

97.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

98.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

99.

The image shows an example of a trait that is

a)

Inherited

b)

Acquired

100.

Which is an example of a non-inherited trait?

a)

shape of face

b)

hair color

c)

food preference

d)

tongue rolling

101.

Which characteristic is the best example of an inherited trait?

a)

short hair

b)

eye color

c)

pierced ears

d)

short fingernails

102.

Some people have a “hitchhiker’s” thumb that allows them to bend their thumbs more than other people. How do these people most likely get this trait?

a)

They learn it from friends.

b)

They inherit it from their parents.

c)

They get it as a result of an illness.

d)

They get it as a result of their jobs.

103.

Which is a trait children most likely inherit from their parents?

a)

favorite color

b)

food preference

c)

freckles

d)

weight

104.

Which is most likely the reason parents and their children have similar physical traits?

a)

They live in the same home.

b)

They have similar genetic structures.

c)

They are born in similar environments.

d)

They have similar blood types.

105.

Which of these traits is most influenced by a person’s environment?

a)

ability to roll the tongue

b)

blood type

c)

weight

d)

eye color

106.

Which is an example of a trait that is inherited?

a)

dimples

b)

intelligence

c)

weight

d)

favorite color

107.
A deer inherits some of its features from its parents. Other features come from its environment. Which feature would a deer most likely inherit from its parents? 
a)
a long scar
b)
brown eyes
c)
missing teeth
d)
a broken antler
108.
A characteristic that an organism can pass on to its offspring
a)
heredity
b)
punnett square
c)
trait
d)
phenotype
109.

Kara’s three sisters have black hair just like their mother. Which most likely explains why Kara has brown hair?

a)

Kara’s father has brown hair.

b)

Kara is older than her sisters.

c)

Kara is younger than her sisters.

d)

Kara's mother prefers brown hair.

110.
Which characteristic would most likely be inherited by a baby?
a)
brown hair
b)
crying a lot
c)
ability to jump high
d)
his ability to talk
111.
Which characteristic is inherited?
a)
hair color
b)
sleeping late
c)
enjoying hiking
d)
loving to read
112.
Which trait does a puppy inherit from its parents?
a)
fur color and pattern
b)
obedience to commands
c)
food brand preference
d)
affection for a specific home
113.
Which best describes an inherited trait?
a)
a characteristic one chooses to express
b)
a characteristic one receives from the food one eats
c)
a characteristic that is passed on from one's parents
d)
a characteristic that is influenced by one's surroundings
114.
Dimples and freckles are both ________.
a)
learned behaviors 
b)
inherited traits
c)
neither 
115.
Which of these is a learned behavior for a human?
a)
sleeping
b)
laughing 
c)
playing violin 
d)
having brown eyes 

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