People's Education Edition Biology for Grade 8, Volume 1
People's Education Edition Biology for Grade 8, Volume 2
People's Education Press High School Biology Compulsory Course 2
Beijing Normal University Edition Seventh Grade Biology Volume 2
People's Education Edition seventh grade biology volume 1
Beijing Normal University Edition Eighth Grade Biology Volume 1
Beijing Normal University Edition Seventh Grade Biology Volume 1
People's Education Press seventh grade biology book volume 2
Beijing Normal University Edition Eighth Grade Biology Volume 2
Jiangsu Education Edition 8th Grade Biology Volume 1
Jiangsu Education Edition Seventh Grade Biology Volume 1
High School Biology Compulsory Course 1, published by People's Education Press
Jiangsu Education Edition Seventh Grade Biology Volume 2
Jiangsu Education Edition 8th Grade Biology Volume 2
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Category | Format | Size |
---|---|---|
People's Education Edition Biology for Grade 8, Volume 1 | pptx | 6 MB |
Description
"Try to classify living things" Classification according to the characteristics of living things 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, discuss it
If you want to understand the growth, development and behavior of the cabbage butterfly, which one among these books would you choose to read? If you want to know more about moths and frogs, which books should you consult?
To learn about the growth, development and behavior of the cabbage butterfly, you can choose to read the book "Butterflies"; to learn about moths, you can read "Entomology" and "Invertebrate Zoology"; to learn about frogs, you can read "Zoology".
Preview test:
1. The basis for classifying organisms is based on the similarity of characteristics of organisms in terms of _____ and _____.
2. The organs of angiosperms can be divided into vegetative organs _____, _____, _____ and reproductive organs _____, _____, _____.
3. Fungi can be divided into groups such as _____ and _____.
Review: Plant groups learned
Algae: Most of them live in water and have no roots, stems or leaves. They reproduce by producing spores.
Bryophytes: Some have stems and leaves, no conductive tissue, and only rhizoids (which only serve to anchor the plant and cannot absorb water and inorganic salts). They reproduce by producing spores.
Ferns: have roots, stems, leaves, and conductive tissue. Reproduce offspring by producing spores.
Gymnosperms: roots, stems, and leaves are developed, and the seeds are exposed without pericarp coating.
Monocotyledonous plants: There is only one cotyledon in the seed embryo, and the leaf veins are generally parallel veins.
Dicotyledonous plants: There are two cotyledons in the seed embryo, and the leaf veins are generally reticular veins.
【Summarize】
1. Animal classification basis:
In addition to comparing the external morphological structure, the physiological functions of animals are also compared.
2. Classification of bacteria and fungi
(1) According to the shape of bacteria, they are divided into: rod-shaped, spiral-shaped, and spherical.
(2) According to the morphological and structural characteristics of fungi, they are divided into: yeast, mold, etc.
summary
1. Basis for biological classification:
⑴ Basis for plant classification
The morphological structure of plants; flowers, fruits, and seeds are often used as important basis for classification
⑵ Basis for animal classification
The characteristics of animals in terms of morphological structure, internal structure and physiological functions.
2. Classification of plants and classification of animals
Classification of commonly used items
Classroom test:
1. Determine whether some of the statements are correct.
(1) The morphological structures of the roots, stems, leaves, flowers, fruits and seeds of angiosperms can be used as the basis for classification. ( )
(2) In addition to comparing morphological structures, animal classification often also requires comparing physiological functions. ( )
2. Among angiosperms, flowers, fruits and seeds are often important basis for classification. Why?
Flowers, fruits and seeds have short survival times, are less affected by the environment, and have relatively stable morphological structures, which can more accurately reflect the evolution and genetic relationships between different plants.
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 Try to Classify Living Things", please click Classify Based on the Characteristics of Living Things ppt Try 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 6:
"Trying to Classify Organisms" Classifying Organisms Based on Their Characteristics PPT Courseware 6 Biological Classification Biological classification is a basic method for studying organisms. Biological classification mainly divides organisms into different levels such as species and genera based on the degree of similarity of organisms, and for each category...
File Info
Update Time: 2024-08-15
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