"Try to classify living things" Classification according to the characteristics of living things PPT courseware 5

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"Try to classify living things" Classification according to the characteristics of living things PPT courseware 5

biological classification

Concept: Classify organisms into different levels such as species and genera based on their degree of similarity, and scientifically describe the morphological structure and other characteristics of each group.

Classification meaning

To clarify the genetic and evolutionary relationships between different species

Classification basis

Characteristics of organisms in terms of morphological structure and other aspects

taxonomic unit

The basic unit is species

review:

What are the six major organs of the plant body?

Do all plants have seeds?

Are the seeds covered with pericarp?

Do all plants have roots, stems, and leaves?

What is the function of rhizoids?

Are all plant veins the same? What types of leaf veins are there?

1. Plant classification

Please observe the morphological characteristics of the above plants. Can you classify them?

Discussion 1: Do all types of plants A, B, C, D, E, and F belong to the same classification level?

According to the presence or absence of seeds, plants can be divided into angiosperms, C gymnosperms, D ferns, E bryophytes, and F algae.

A and B belong to the angiosperm group and should be one level lower than C, D, E and F.

Discussion 3. Through the above data analysis, what characteristics do you think are considered in plant classification?

Plant roots, stems, leaves, veins, cotyledons, fruits, seeds, etc. are considered.

Plants are classified based on:

Plants are classified according to their morphological structure.

Example: the morphological structure of roots, stems, leaves, flowers, fruits, and seeds of angiosperms.

Among them, flowers, fruits and seeds can be used as the main basis for classification.

2. Classification of animals: observation and thinking

Think and discuss

1. If these 11 groups of animals are divided into two groups, what animal groups are they? What animals are in each group?

2. Classify the animals in each group into what groups? What animals are in each category?

3. Can you try to classify these 11 animals according to the table of plant classification?

Knowledge expansion

Bees are animals, invertebrates, arthropods, and insects. Why do the same animals have different group names?

Different group names belong to different classification levels. Giving bees different classification names is a taxonomic necessity, which indicates the position of bees in different classification levels.

Little Taxonomist:

( ) is a basic method for studying biology.

A. Biological classification

B. Divide organisms into different levels

C. Divide living things into animals and plants

D. Understand biological diversity

The basic unit of classification ( )

A.Phylum B.Class C.Genus D.Species

The main basis for biological classification is ( ) and other characteristics

A. Quantity B. Level

C. Morphological structure D. Size

Among the following items ( ) are not important basis for classification.

A. leaves B. flowers C. fruits D. seeds

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"Trying to Classify Organisms" Classification according to the characteristics of organisms PPT courseware 9:

"Trying to Classify Organisms" Classifying Organisms Based on Their Characteristics PPT Courseware 9 Reviewing the Past and Learning the New 1. Do all plants have seeds? 2. Do all plants have roots, stems, and leaves? 3. What is the function of roots? 4. Are the seeds covered with pericarp? 5...

"Trying to Classify Organisms" Classification according to the characteristics of organisms PPT courseware 8:

"Trying to Classify Organisms" Classifying Organisms Based on Their Characteristics PPT Courseware 8 By studying this section, you will know: 1. What is the basis for classifying organisms? 2. How to classify organisms according to their characteristics? 3. What is the purpose of biological classification?

"Trying to Classify Organisms" Classification according to the characteristics of organisms PPT courseware 7:

"Trying to Classify Organisms" Classifying Organisms Based on Their Characteristics PPT Courseware 7 Teaching Objectives: 1. What is the basis for classifying organisms? 2. How to classify organisms according to their characteristics? Think about it and discuss it. If you want to know about the life of the cabbage butterfly...

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Update Time: 2024-08-14

This template belongs to biology courseware People's Education Edition Biology for Grade 8, Volume 1 industry PPT template

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