| Category | Format | Size |
|---|---|---|
| People's Education Press Sixth Grade Science Volume 1 | pptx | 6 MB |
"How Plants Reproduce" Plant Life System PPT Courseware 3
Description
"How Plants Reproduce" Plant Life System PPT Courseware 3
Life is limited.
So how should life continue?
What organs do plants use to reproduce?
The pistil (ovary) and stamens (pollen) of the flower
Pollination methods: self-pollination, cross-pollination, artificial pollination
In addition to flowering and fruiting, what other methods of reproduction are there?
Asexual reproduction: cuttings, grafting, layering, division and other methods.
How are plant seeds spread?
1. Wind dispersion
2. Hydraulic dispersion
3. Dispersed by animals and humans
4. Relying on the mechanical power of the fruit itself to spread the seeds to different places
5. Seeds spread by fire
Seed plants have become the dominant group on the earth today due to their wide adaptability. They live in certain ecosystems. Due to the limitations of natural conditions, geographical isolation and transmission methods, as well as the long-term interaction between species, , making the biological composition and proportion of each ecosystem relatively stable. As the degree and scope of human activities continue to deepen and expand, humans have intentionally or unintentionally helped some species break through restrictions and isolation, expand the spread of species, and have had a negative impact on the stability and biodiversity of the original ecosystem. The huge impact should arouse our close attention.
Keywords: plant life system teaching courseware, how plants reproduce teaching courseware, People's Education Edition sixth grade science PPT courseware download, sixth grade science slide courseware download, plant life system PPT courseware download, how plants reproduce PPT courseware download, .PPT format;
For more information about the PPT courseware "The Life System of Plants and How Plants Reproduce", please click the PPT tag of "The Life System of Plants and How Plants Reproduce".
"How Plants Reproduce" Plant Life System PPT Courseware 2:
"How Plants Reproduce" Plant Life System PPT Courseware 2 Discussion: 1. What are the labor-saving machines in life? Lever, ramp, pulley, gear. 2. If paper with the same texture is folded into different shapes, will their endurance be the same? It's different, the more horns...
"How Plants Reproduce" Plant Life System PPT Courseware:
"How Plants Reproduce" Plant Life System PPT Courseware Go to a nursery for an outing. Spring is the season when all things revive. Let's take a look at the plants growing in the nursery! ! ! Thought and Discussion How are plant seedlings propagated in nurseries? ..
File Info
Update Time: 2024-07-02
This template belongs to science courseware People's Education Press Sixth Grade Science Volume 1 industry PPT template
"How Plants Reproduce" Plant Life System PPT Courseware 3 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 "How Plants Reproduce" Plant Life System PPT Courseware 3 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
"How Plants Reproduce" Plant Life System PPT Courseware 3, 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:
