"Trying to Classify Organisms" Classification according to the characteristics of organisms PPT courseware 6

Description

"Trying to Classify Organisms" Classification according to the characteristics of organisms PPT courseware 6

biological classification

Biological classification is a basic method for studying living things. Biological classification mainly divides organisms into different levels such as species and genera based on the degree of similarity of organisms, and scientifically describes the morphological structure and other characteristics of each group to clarify the genetic and evolutionary relationships between different groups. Classification is based on the characteristics of organisms in terms of morphological structure and other aspects. The basic unit of classification is species.

Classification of plants: preview page 81 observations and reflections,

Complete each question based on the discussion on page 82.

There are about _________ more than 10,000 species of green plants known in the biosphere. What are the four major groups they can be divided into?

1. Do all plants have seeds?

2. Are the seeds covered with pericarp?

3. Are the number of cotyledons in beans and corn seeds the same? What kind of plant has two cotyledons? What is a plant with one cotyledon?

4. Are the leaf veins of all plants the same? What are the characteristics of parallel veins and reticular veins?

5. Do all plants have roots, stems, and leaves?

6. What is the function of rhizomes?

7. What is the basis for classifying plants?

2. Bryophytes

Main characteristics of bryophytes:

Most of them live on ( ) land and generally have ( ). But there is no ( ) in the stem, there is no ( ) in the leaves, and there is ( ) in the plant ( ).

3. Ferns

Main characteristics of ferns:

Lives in moist environments and is much taller than bryophytes. There are differentiations of ( ), ( ), ( ), and among them there is ( ).

1. Connect the following plant groups with their corresponding characteristics with lines.

Algae plants have roots, stems, leaves, and conductive tissues in their bodies

Bryophytes have no differentiation of organs such as roots, stems, and leaves.

Ferns are short plants with no conductive tissue in the stems and leaves.

3. What groups can plants with seeds be divided into?

Can be divided into: gymnosperms and angiosperms.

Angiosperms are divided into monocots, which have only one cotyledon, and dicots, which have two cotyledons.

4. What groups can seedless plants be divided into?

Can be divided into: algae, bryophytes and ferns.

Try classifying plants:

1. Whether there are seeds: seed plants and seedless plants

2. Whether there is a pericarp outside the seed: angiosperms and gymnosperms

3. Monocotyledonous plants and dicotyledonous plants

4. Ferns: stems and leaves differentiated, true roots

5. Bryophytes: stems and leaves differentiated, rhizoids

6. Algae: no stem and leaf differentiation

Keywords: Classification teaching courseware based on the characteristics of living things, try to classify living things teaching courseware, download PPT courseware for eighth-grade biology volume 1 of the People's Education Edition, download courseware slides for eighth-grade biology, download PPT courseware for classifying living things according to the characteristics, try Download the PPT courseware on classifying organisms in .PPT format;

For more information about the PPT courseware "Classification Based on the Characteristics of Living Things and Trying to Classify Living Things", please click Classify Based on the Characteristics of Living Things PPT Trying to Classify Living Things PPT tag.

"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...

File Info

Update Time: 2024-11-18

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

Preview