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Unit 7 Classification of Organisms Review

Total questions: 21

Worksheet time: 16mins

Name
Class
Date
1.

A scientist wants to classify an organism into a taxonomic domain. What is the BEST method to use?

a)

Look at what it eats (heterotrophic or autotrophic)

b)

Determine how many cells it has (unicellular or multicellular)

c)

Look at its cells for a nucleus (prokaryotic or eukaryotic)

d)

Look at where it lives

2.

The scientific name of an organism is made up of what two levels of classification?

a)

Family and species

b)

Genus and species

c)

Genus and phylum

d)

Class and family

3.
The taxonomic levels represented in this picture are the three —
a)
classes, the lowest levels of organization, and their associated phyla.
b)
kingdoms, the broadest levels of organization, and their associated phyla.
c)
domains, the broadest levels of organization, and their associated kingdoms.
d)
orders, the lowest levels of organization, and their associated domains.
4.

Based on the chart, which two organisms are most similar or closely related?

a)

lion and dolphin

b)

lion and leopard shark

c)

dolphin and leopard shark

5.

Which of the following is NOT a Classification in the Linnaean system of naming?

a)

Phylum

b)

Prokaryote

c)

Class

d)

Order

6.

What is one characteristic that is common to BOTH plant cells and animal cells?

a)

They are heterotrophic

b)

They are prokaryotic

c)

They are autotropic

d)

They are eukaryotic

7.

An organism's ability to photosynthesize could be used to classify it.

a)

True

b)

False

8.

The color of the skin/fur of an organism could be used to classify it.

a)

True

b)

False

9.

The number of appendages that an organism has could be used to classify it.

a)

True

b)

False

10.

The size of an organism could be used to classify it.

a)

True

b)

False

11.

When classifying an organism into one of the three domains of life, what should NOT be used?

a)

Whether or not it has a nucleus

b)

How it reproduces

c)

It's physical characteristics

d)

How it gets its nutrients

12.

Which scientist developed the current naming system used to classify organisms?

a)

Hooke

b)

Linnaeus

c)

Darwin

d)

Newton

13.

Each kingdom is subdivided into different domains.

a)

True

b)

False

14.

The most specific group of organization is known as the genus.

a)

True

b)

False

15.

The broadest group of organization is known as the domain.

a)

True

b)

False

16.

The three domains are Bacteria, Archaea, and Prokaryote.

a)

True

b)

False

17.

What do organisms classified in domains Bacteria and Archaea have in common?

a)

They are heterotrophic

b)

They are multicellular

c)

They are eukaryotic

d)

They are prokaryotic

18.

In the classification system, all groups have the same number of organisms.

a)

True

b)

False

19.

In the classification system, the largest groups have the most important animals.

a)

True

b)

False

20.

In the classification system, organisms in the same group have similar characteristics.

a)

True

b)

False

21.

In the classification system, organisms are placed in groups by how big they are.

a)

True

b)

False