| Category | Format | Size |
|---|---|---|
| People's Education Edition Biology for Grade 8, Volume 1 | pptx | 6 MB |
"Mammals" Main groups of animals PPT courseware 6
Description
"Mammals" Main groups of animals PPT courseware 6
external appearance of rabbit
The body is divided into five parts: head, neck, trunk, limbs and tail.
The body is covered with hair.
Coarse hair: rare, resistant to friction and protective
Villi: fine and dense, covering the skin for insulation
The heart is divided into four chambers:
left atrium, right atrium
left ventricle, right ventricle
blood circulation
It has a strong ability to transport oxygen, which is conducive to the decomposition of organic matter and provides sufficient energy for the body. It can maintain a constant body temperature through its own regulation.
Rabbit nervous system
The nervous system of rabbits consists of brain, spinal cord and nerves. Rabbits have developed brains and can respond differently to different stimuli.
Rabbit Reproduction and Development
After the reproductive organs of male and female rabbits mature, they will mate. The male rabbit's sperm enters the female rabbit's body and combines with the egg cells to form a fertilized egg, completing fertilization.
The fertilized egg of a rabbit develops into an embryo after cell division and differentiation in the mother's uterus, and the embryo continues to develop into a fetus in the uterus.
Main characteristics of mammals
Body coat;
Teeth are differentiated into incisors, molars and canines;
There is a diaphragm in the body cavity;
breathing with lungs;
The heart has four chambers;
body temperature constant;
developed brain;
Viviparity, lactation.
Summarize the characteristics of mammals:
Body coat;
viviparous, lactation;
Teeth are differentiated into incisors, canines and molars.
The relationship between mammals and human life
1. Food source;
2. Maintain the stability of the ecosystem;
3. Humanity’s right-hand assistant;
4. Implement reasonable prevention and control of harmful animals.
Standard training
1. The general characteristics of herbivore tooth differentiation are ( )
A. The incisors and canines are well developed and the molars are degenerated.
B． Molars and canines are well developed and incisors are degenerated.
C. The incisors and molars are well developed and the canines are degenerated.
D. Well-developed incisors, molars and canines
2. Compared with other animals, the main reason why mammals have a higher survival rate of offspring is ( )
A. Breathe with lungs B. Live birth, breastfeeding
C. Four chambers of the heart D. Body coat
3. What belongs to mammals ( )
A. whale
B． giant salamander
C. turtle
D. squid
4. The common characteristics of mammals and birds are ( )
A. Both have feathers
B． Both are warm-blooded animals
C. Both are viviparous
D. Both have wings
Keywords: teaching courseware for the main groups of animals, teaching courseware for mammals, download PPT courseware for the first volume of eighth-grade biology from the People's Education Edition, download courseware for eighth-grade biology slides, download PPT courseware for the main groups of animals, download PPT courseware for mammals, .PPT Format;
For more information about the "Main Groups of Animals Mammals" PPT courseware, please click the "Main Groups of Animals ppt Mammals ppt" tag.
"Mammals" Main groups of animals PPT courseware 5:
"Mammals" Main Groups of Animals PPT Courseware 5 Learning Objectives 1. What are the main characteristics of mammals? (Key and difficult) 2. What is the relationship between mammals and human life? Task: Read the main characteristics of mammals and complete the following questions (page 3637)..
"Mammals" Main groups of animals PPT courseware 4:
"Mammals" Main Groups of Animals PPT Courseware 4 1. Main Characteristics of Mammals 1. Except for a few aquatic species such as whales, which have degraded body hair, all mammals are covered with hair. Body hair has a very good thermal insulation effect, and mammals are warm-blooded animals. 2.Viviparous, lactating..
"Mammals" Main groups of animals PPT courseware 3:
"Mammals" Main groups of animals PPT courseware 3 Think about it and discuss it Mammals feed their young with milk, and small animals will suck milk as soon as they are born. I would like to ask: What are the advantages of breastfeeding? By studying this section, you will know: 1. The main characteristics of mammals...
File Info
Update Time: 2024-07-05
This template belongs to biology courseware People's Education Edition Biology for Grade 8, Volume 1 industry PPT template
"Mammals" Main groups of animals PPT courseware 6 Simple campus recruitment activity planning plan summary enterprise and institution recruitment publicity lecture PPT template is a general PPT template for business post competition provided by the manuscript PPT, simple campus recruitment activity planning plan summary enterprise and institution recruitment promotion Lecture PPT template, you can edit and modify the text and pictures in the source file by downloading the source file. If you want more exquisite business PPT templates, you can come to grid resource. Doug resource PPT, massive PPT template slide material download, we only make high-quality PPT templates!
Tips: If you open the template and feel that it is not suitable for all your needs, you can search for related content "Mammals" Main groups of animals PPT courseware 6 is enough.
How to use the Windows system template
Directly decompress the file and use it with office or wps
How to use the Mac system template
Directly decompress the file and use it Office or wps can be used
Related reading
For more detailed PPT-related tutorials and font tutorials, you can view: Click to see
How to create a high-quality technological sense PPT? 4 ways to share the bottom of the box
Notice
Do not download in WeChat, Zhihu, QQ, built-in browsers, please use mobile browsers to download! If you are a mobile phone user, please download it on your computer!
1. The manuscript PPT is only for study and reference, please delete it 24 hours after downloading.
2. If the resource involves your legitimate rights and interests, delete it immediately.
3. Contact information: service@daogebangong.com
"Mammals" Main groups of animals PPT courseware 6, due to usage restrictions, it is only for personal study and reference use. For commercial use, please go to the relevant official website for authorization.
(Personal non-commercial use refers to the use of this font to complete the display of personal works, including but not limited to the design of personal papers, resumes, etc.)
Preview
Related Search:
