classification of living things chapter 9

St. Leo the Great School Life Science

Classification of Living Things Chapter 9

Unit Essential Question How are living things classified?

Life Science Mr. Swope

Lesson One Essential Question Why and how organisms are classified? Lesson One Terms Classification Taxonomy Dichotomous Key Domain Kingdom Phylum Class Order Family Genus Species Name the seven levels of classification. Lesson One Evaluation Explain why and how organisms are classified. List the eight levels of classification. Explain scientific names. Describe how dichotomous keys help in identifying organisms.

Lesson One Sorting it all out Why Classify?

• Answering Questions The classification of living things makes it easier for biologist to answer many important questions such as:

1. How many known _____________ are there?

2. What are the defining characteristics of each _____________?

3. What are the _____________ between these species?

How do Scientists Classify Organisms?

• Classification Today _____________ use the eight-level system to

classify living things based on shared characteristics.

Branching Diagrams On a _____________ diagram, several characteristics

are listed along the line that points to the right. Each characteristic is shared by the animals to the right of it. Levels of Classification

• Kingdoms and Beyond The eight levels of classification are:

1. _____________

2. _____________

3. _____________ 4. _____________ 5. _____________ 6. _____________ 7. _____________ 8. _____________ Scientific Names

• One Species, One Name A scientific name is always the same for a specific kind of organism no matter how many common names there might be.

Two-Part Names The first part of a species’ name is the

_____________name. It is always capitalized. The second part of the name is

the _____________name.





Lesson Two Essential Questions Explain how classification developed as greater numbers of organisms became known. Describe the three domains. Describe four kingdoms in the domain Eukarya Lesson Two Terms: Archaea Bacteria Eukarya Protista Fungi Plantae Animalia

Dichotomous Keys

• What Is a Dichotomous Key? A _____________key is a tool for

identifying organisms that uses a series of paired descriptive statements.

Two-Part Names By working through the statements in a _____________key

in order, a person can eventually identify an unknown organism. A Growing System

• Still Discoveries to Make People are still discovering and classifying organisms.

Discovery Unique Organisms Sometimes new _____________are found that

are so different from other known organisms that new _____________,

phyla, and so on must be formed.

End of Lesson One Lesson Two Domains and Kingdoms What Is It?

• What Is Used to Classify Organisms? Organisms are classified by their

_____________.

Adding New Classification Categories As scientists continue to learn about living things, they add classification categories that account for the

_____________of different organisms.

The Two Kingdoms of Bacteria

• The Domain Archaea _____________are one of two kinds of

prokaryotes. _____________are single-celled organisms that do not

have a nucleus. Most are known to live in extreme environments.

The Domain Bacteria _____________are another kind of prokaryote.

Bacteria can be found in soil, water, and even on and inside the human body.





Lesson Two Evaluation Explain how classification developed as greater numbers of organisms became known. Describe the three domains. Describe four kingdoms in the domain Eukarya

The Domain _____________

• The Kingdom Protista Today members of the kingdom

_____________commonly called protists, are single-celled or simple

multicelluar organisms. Protista contains many kinds of organisms, including protozoans, algae, and euglenoids.

• The Kingdom Fungi _____________and

_____________are examples of the complex, multicelluar members

of the kingdom Fungi. Fungi do not perform photosynthesis or eat food. Instead, fungi absorb nutrients from substances in their surroundings.

The Kingdom _____________

• Plants The kingdom _____________consists of organisms that are

_____________, have cell walls, and make food through

photosynthesis. Examples of Plantae Sequoia trees, roses, grasses, ferns, and more are all examples of

members of the kingdom _____________.

The Kingdom Animalia

• Animals The kingdom _____________contains complex,

multicellular organisms that don’t have cell walls, are usually able to move around, and have specialized sense organs.

• Examples of _____________Ants, beetles, lizards, fish, birds, apes,

elephants, and more are all examples of members of the kingdom Animalia. Simple Animals Most animals are able to move, but sponges, a simple animal, cannot move. End of Lesson Two Use the terms below to complete the concept map on the next slide. End of Chapter 9





Lesson One Essential Question Why and how organisms are classified? Lesson One Terms Classification Taxonomy Dichotomous Key Domain Kingdom Phylum Class Order Family Genus Species Name the seven levels of classification. Lesson One Evaluation Explain why and how organisms are classified. List the eight levels of classification. Explain scientific names. Describe how dichotomous keys help in identifying

Lesson One Sorting it all out Why Classify?

• Answering Questions The classification of living things makes it easier for biologist to answer many important questions such as:

1. How many known species are there?

2. What are the defining characteristics of each species?

3. What are the relationships between these species?

How do Scientists Classify Organisms?

• Classification Today Taxonomists use the eight-level system to classify

living things based on shared characteristics.

Branching Diagrams On a branching diagram, several characteristics are listed

along the line that points to the right. Each characteristic is shared by the animals to the right of it. Levels of Classification

• Kingdoms and Beyond The eight levels of classification are:

1. Domain

2. Kingdom

3. Phylum 4. Class 5. Order 6. Family 7. Genus 8. Species Scientific Names

• One Species, One Name A scientific name is always the same for a specific kind of organism no matter how many common names there might be.

Two-Part Names The first part of a species’ name is the genus name. It is always

capitalized. The second part of the name is the species name.





organisms. Lesson Two Essential Questions Explain how classification developed as greater numbers of organisms became known. Describe the three domains. Describe four kingdoms in the domain Eukarya Lesson Two Terms: Archaea Bacteria Eukarya Protista Fungi Plantae Animalia

Dichotomous Keys

• What Is a Dichotomous Key? A dichotomous key is a tool for

identifying organisms that uses a series of paired descriptive statements.

Two-Part Names By working through the statements in a dichotomous key

in order, a person can eventually identify an unknown organism. A Growing System

• Still Discoveries to Make People are still discovering and classifying organisms.

Discovery Unique Organisms Sometimes new organisms are found that are so

different from other known organisms that new classes, phyla, and so on must be

formed.

End of Lesson One Lesson Two Domains and Kingdoms What Is It?

• What Is Used to Classify Organisms? Organisms are classified by their

characteristics.

Adding New Classification Categories As scientists continue to learn about living

things, they add classification categories that account for the characteristics of different organisms. The Two Kingdoms of Bacteria

• The Domain Archaea Archaea are one of two kinds of prokaryotes.

Prokaryotes are single-celled organisms that do not have a nucleus.

Most are known to live in extreme environments.

The Domain Bacteria Bacteria are another kind of prokaryote. Bacteria can be

found in soil, water, and even on and inside the human body.

The Domain Eukarya

• The Kingdom Protista Today members of the kingdom Protista commonly called protists, are single-celled or simple multicelluar organisms.

Protista contains many kinds of organisms, including protozoans, algae, and euglenoids.





Lesson Two Evaluation Explain how classification developed as greater numbers of organisms became known. Describe the three domains. Describe four kingdoms in the domain Eukarya

• The Kingdom Fungi Molds and mushrooms are examples of the

complex, multicelluar members of the kingdom Fungi. Fungi do not perform photosynthesis or eat food. Instead, fungi absorb nutrients from substances in their surroundings.

The Kingdom Plantae

• Plants The kingdom Plantae consists of organisms that are

eukaryotic, have cell walls, and make food through photosynthesis.

Examples of Plantae Sequoia trees, roses, grasses, ferns, and more are all examples of

members of the kingdom Plantae.

The Kingdom Animalia

• Animals The kingdom Animalia contains complex, multicellular

organisms that don’t have cell walls, are usually able to move around, and have specialized sense organs.

• Examples of Animalia Ants, beetles, lizards, fish, birds, apes,

elephants, and more are all examples of members of the kingdom Animalia. Simple Animals Most animals are able to move, but sponges, a simple animal, cannot move. End of Lesson Two Use the terms below to complete the concept map on the next slide. End of Chapter 9





Classification Taxonomy Dichotomous Key





Domain Kingdom Phylum





Class Order Family




Page

10


Genus Species Archaea




Page

11


Bacteria Eukarya Protista




Page

12


Fungi Plantae Animalia

classification of living things chapter 9

Documents