"Plants Around You" Animals and Plants Around You PPT Courseware 2

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"Plants Around You" Animals and Plants Around You PPT Courseware 2

Li Shizhen

Li Shizhen (1518-1593), whose courtesy name was Dongbi and nicknamed Binhu, was born in Binhushan in his later years. He was a native of Qizhou, Hubei (now Qizhou Town, Qichun County, Huanggang City, Hubei Province), and was of Han nationality. Li Shizhen was one of the most famous medical scientists, pharmacologists and naturalists in the Ming Dynasty of China and in Chinese history. His "Compendium of Materia Medica" is a comprehensive work on materia medica and has a profound influence on the medical and natural history research of later generations. Darwin praised it as "the encyclopedia of ancient China".

plant

Plants are a major category in the biological world. Generally there is chlorophyll, but no nerves or feelings. The origin of plants can be traced back to 2.5 billion years ago.

Plants are divided into algae, ferns, bryophytes and seed plants. Seed plants are further divided into gymnosperms and angiosperms. There are more than 300,000 species.

It is the blooming and falling of angiosperm flowers that make the Cenozoic Earth with its distinct four seasons particularly beautiful.

Think about it

Self-study tips:

1. What plants do you see in the picture above?

2. What other common plants do you know?

Plant classification

Can you try to classify the following plants according to different criteria?

Classify the plants around you

Chrysanthemum: represents a flowering, fragrant, annual, herbaceous, erect-stemmed plant;

Corn: represents a plant with flocculent flowers, large leaves, and seeds. It is also a representative of food crops and agricultural crops;

Lotus: represents an aquatic, fragrant, flowering plant with underground stems, fruits and seeds;

Pine: represents woody, tall, perennial, small flowers, erect stems, needle-shaped leaves, gymnosperms;

Reed: Represents flocculent flowers, herbs, underground stems, and economically valuable plants that live in wetlands;

Willow: represents a woody, perennial plant that is adapted to grow in a moisture-rich environment.

interesting plants

Meat-eating plant - Nepenthes

Nepenthes is the collective name for plants of the genus Nepenthes. It is the only genus of the Nepenthes family and a variety of perennial herbaceous plants that can prey on insects. Its main origin is tropical Asia. It is a ground plant and a climbing subshrub. Nepenthes has a unique organ for absorbing nutrients - the pitcher. The pitcher is cylindrical with a slightly enlarged lower part. Because it is shaped like a pig pitcher, it is called Nepenthes. In Hainan, the place of origin in China, it is also called the Thunder God Pot, which means that it resembles a wine pot. Plants that obtain nutrients by capturing and digesting small animals such as insects are called carnivorous plants.

The leaves of Sunflower are generally about 0.3 meters long, and the flowers are scattered on the leaves. Sunflowers emit an alluring orchid-like fragrance that can be smelled from a distance. Sunflower grows in the dense primeval forests and vast swamps of the Amazon River Basin in South America. It is a feared man-eating plant.

Unlike ordinary plants, this flower is very responsive and powerful. If someone wants to pick its flowers, no matter if they touch its stems, leaves or petals, the slender leaves will immediately stretch out like an eagle's claws and grab the person tightly. At the same time, the large spider hiding next to the sun flower, the black widow spider, quickly came to bite the human body. The venom glands in the upper jaw of this spider can secrete a neurotoxic protein liquid. When the venom enters the human body, it will cause death.

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For more information about the PPT courseware "Animals and Plants Around You, Plants Around You", please click on the Animals and Plants Around You ppt Plants Around You ppt tag.

"Plants Around You" Animals and plants around you PPT courseware:

"Plants Around You" PPT courseware teaching on animals and plants around you introduces How many kinds of plants are there on the earth? How many kinds of plants are there in China? How many kinds of plants are there in Hunan? How many kinds of plants are there on campus? Knowledge explanation and understanding of the plants around us 1. Task assignment for us What plants are around...

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Update Time: 2024-11-25

This template belongs to science courseware Hunan Education Edition Third Grade Science Volume 1 industry PPT template

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