Variation and Classification: Learn About Living Things and Their Differences

Question 1

What is a special tool that helps us identify and group living things?

Accepted Answer

A dichotomous key

Answer

A microscope

Answer

A thermometer

Answer

A balance

Question 2

What's the difference between a species and a variety?

Accepted Answer

A species can breed together, while a variety has special features

Answer

A variety can breed together, while a species has special features

Answer

There's no difference between a species and a variety

Answer

Both species and varieties can breed together

Question 3

How do scientists organize all living things?

Accepted Answer

By their DNA

Answer

By size

Answer

By how they look

Answer

By how they act

Question 4

Which of these traits is passed down from parents to offspring?

Accepted Answer

Eye color

Answer

Favorite food

Answer

Learning ability

Answer

Friendships

Question 5

How do we organize living things based on their similarities?

Accepted Answer

Classification

Answer

Variation

Answer

Adaptation

Answer

Evolution

Question 6

Which of these is a physical trait?

Accepted Answer

Height

Answer

Intelligence

Answer

Aggressiveness

Answer

Curiosity

Question 7

What's a limitation of using a simple key?

Accepted Answer

It may not work for all species

Answer

It requires specialized equipment

Answer

It can be time-consuming

Answer

It is not accurate

Question 8

What does variation within a species mean?

Accepted Answer

Differences in traits among individuals of the same species

Answer

Differences in traits among different species

Answer

Changes in traits over time

Answer

Similarities in traits among all living things

Question 9

What's the scientific name for humans?

Accepted Answer

Homo sapiens

Answer

Pan troglodytes

Answer

Canis lupus familiaris

Answer

Felis catus

Question 10

Which of these is a common trait of all mammals?

Accepted Answer

Hair

Answer

Feathers

Answer

Living in water

Answer

Laying eggs

Question 11

Which of these is NOT a living thing?

Accepted Answer

Minerals

Answer

Plants

Answer

Animals

Answer

Mushrooms

Question 12

What is an advantage of using a dichotomous key?

Accepted Answer

It helps identify living things quickly and easily.

Answer

It provides detailed information about all characteristics of a living thing.

Answer

It can be used to classify all types of living things.

Answer

It is easy to create and use.

Question 13

Which of these characteristics is used to classify animals in the group called mammals?

Accepted Answer

Have fur or hair

Answer

Lay eggs

Answer

Have feathers

Answer

Live in water

Question 14

Which of these involves testing a prediction?

Accepted Answer

Experiment

Answer

Observation

Answer

Classification

Answer

Modelling

Question 15

When sorting animals into groups, which of these cannot be used as a characteristic?

Accepted Answer

How it is made

Answer

Shape

Answer

Habitat

Answer

Color

Question 16

Which tool can be used to help identify and sort living things?

Accepted Answer

A special key with two choices

Answer

A microscope

Answer

A thermometer

Answer

A scale

Question 17

Which of these statements about sorting living things is correct?

Accepted Answer

Sorting is based on what you can see about them.

Answer

There are only two big groups for living things.

Answer

Sorting systems are always perfect and don't change.

Answer

Only scientists can sort living things.

Question 18

Which of these is a physical adaptation?

Accepted Answer

Camouflage

Answer

Enhanced senses

Answer

Moving from one place to another

Answer

Talking with each other

Question 19

A group of the same type of living thing that live together is called a:

Accepted Answer

Population

Answer

Community

Answer

Ecosystem

Answer

Biome

Question 20

Who is a scientist that looks at how living things are sorted into groups?

Accepted Answer

Taxonomist

Answer

Biologist

Answer

Ecologist

Answer

Zoologist

Question 21

Which of these is NOT a characteristic used to classify living things?

Accepted Answer

Gender

Answer

Size

Answer

Color

Answer

Shape

Question 22

If a group of living things shares similar features, we call it a:

Accepted Answer

Species

Answer

Genus

Answer

Category

Answer

Family

Question 23

Which of these is an example of a continuous variation?

Accepted Answer

Seed size

Answer

Flower colour

Answer

Number of petals

Answer

Leaf shape

Question 24

In natural selection, organisms with traits that help them survive and make more babies are more likely to:

Accepted Answer

Pass on those traits

Answer

Change their environment

Answer

Become extinct

Answer

Stop reproducing

Question 25

What do we call a group of the same type of living thing that live in the same area?

Accepted Answer

A population

Answer

A community

Answer

An ecosystem

Answer

A habitat

Question 26

Which group of animals is closest in relation to humans?

Accepted Answer

Monkeys and apes

Answer

Mice and rats

Answer

Insects

Answer

Birds

Question 27

Which of the following is NOT a factor that can affect variation within a population?

Accepted Answer

How old they are

Answer

Genes

Answer

Environment

Answer

Natural selection

Question 28

What is a benefit of using a simple key to identify living things?

Accepted Answer

It can help us identify organisms quickly and easily

Answer

It can help us learn more about the differences between different living things

Answer

It can help us learn the scientific names of all living things

Answer

It can help us understand how different species evolved

Question 29

What is the purpose of a species name?

Accepted Answer

To give the species a unique name

Answer

To show how big the species is

Answer

To show what color the species is

Answer

To show how the species evolved

Question 30

What is the difference between a scientific name and a common name?

Accepted Answer

A scientific name is the same in all languages, while a common name can be different

Answer

A scientific name is used for all living things, while a common name is only used for animals

Answer

A common name is more formal than a scientific name

Answer

A scientific name is shorter than a common name

Question 31

What is an advantage of using dichotomous keys?

Accepted Answer

They can help you identify organisms quickly

Answer

They are always 100% accurate

Answer

You need to know a lot about the species to use them

Answer

They can only be used to identify plants

Question 32

What is the name of the system used to organize living things into different categories?

Accepted Answer

Taxonomy

Answer

Ecology

Answer

Biology

Answer

Genetics

Question 33

What is a simple key?

Accepted Answer

A set of simple questions that help you identify a living thing.

Answer

A list of all the living things in a particular area.

Answer

A scientific tool used to measure temperature.

Question 34

What is the purpose of using a simple key?

Accepted Answer

To identify an unknown living thing.

Answer

To classify living things into different groups.

Answer

To create a family tree.

Answer

To study the behavior of living things.

Question 35

What is the difference between a species and a population?

Accepted Answer

A species is a group of similar organisms that can breed together, while a population is a group of similar organisms living in the same place.

Answer

A species is a group of similar organisms living in the same place, while a population is a group of similar organisms that can breed together.

Question 36

Which of the following is an example of a dichotomous key?

Accepted Answer

A key that divides organisms into two groups at each step.

Answer

A key that divides organisms into four groups at each step.

Answer

A key that divides organisms into three groups at each step.

Question 37

What is the advantage of using a dichotomous key?

Accepted Answer

It can help identify an unknown organism quickly and accurately.

Answer

It can help study the behavior of living things.

Answer

It can help create a family tree.

Question 38

A simple key is a tool used to:

Accepted Answer

Identify and classify living things based on their observable characteristics

Answer

Predict the future

Answer

Discover new species

Answer

Measure the height of trees

Question 39

What is a characteristic of a dichotomous key?

Accepted Answer

It has two branches at each step, leading to a specific identification or classification

Answer

It only has one question

Answer

It has many branches at each step

Answer

It only has yes or no answers

Question 40

Which of the following is an example of a continuous variation in living things?

Accepted Answer

Height in humans

Answer

Number of petals on a flower

Answer

Shape of leaves

Answer

Presence or absence of stripes in tigers

Question 41

Discontinuous variation is when:

Accepted Answer

A characteristic can only take on a limited number of distinct forms

Answer

A characteristic changes gradually over time

Answer

A characteristic can take on any value within a range

Question 42

Which of the following can be a limitation of using a simple key?

Accepted Answer

It may not be able to identify all organisms accurately

Answer

It is always easy to use

Answer

It can be used to classify any type of living thing

Question 43

The first step in creating a simple key is to:

Accepted Answer

Identify the observable characteristics that vary among the organisms being classified

Answer

Write a detailed description of each organism

Answer

Draw a picture of each organism

Question 44

Which of the following characteristics is NOT used to classify living things?

Accepted Answer

Height of a building

Answer

Size

Answer

Habitat

Question 45

Which of the following groups of animals are classified as mammals?

Accepted Answer

Animals that have fur or hair and produce milk for their young

Answer

Animals that have feathers and lay eggs

Answer

Animals that have scales and live in water

Question 46

The following is a list of characteristics:
- Has leaves
- Produces flowers
- Has green stem
Which of the following best describes the group of living things that share these characteristics?

Accepted Answer

Plants

Answer

Fungi

Answer

Bacteria

Answer

Animals

Question 47

What is the purpose of a dichotomous key?

Accepted Answer

To help identify living things based on their characteristics

Answer

To explain the life cycle of a living thing

Answer

To describe the different parts of a living thing

Question 48

The following is a dichotomous key for classifying insects:
1a. Has wings - go to 2
1b. Does not have wings - go to 3
2a. Has two wings - Flies
2b. Has four wings - Wasps and Bees
3a. Has six legs - Insects
3b. Does not have six legs - Spiders
Which of the following insects would be classified as a fly?

Accepted Answer

An insect with two wings

Answer

An insect with four wings

Answer

An insect with eight legs and no wings

Answer

An insect with six legs and no wings

Question 49

Which of the following is an advantage of using a dichotomous key?

Accepted Answer

It can be used to identify living things quickly and easily

Answer

It provides detailed information about the living thing

Answer

It can be used to identify all living things

Question 50

Which of the following is a limitation of using a dichotomous key?

Accepted Answer

It may not be able to identify all living things

Answer

It is too complex to use

Answer

It is only useful for identifying plants

Answer

It is not accurate

Question 51

Which of the following is the best way to ensure that a dichotomous key is accurate?

Accepted Answer

Test it out on a variety of living things

Answer

Use only one characteristic to identify each living thing

Answer

Make sure the key is very long

Answer

Use only scientific names in the key