"Ecological Pyramid" PPT download

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"Ecological Pyramid" PPT download

Part One: Introduction of New Course

Ecological environment short film

Food chain: Creature B eats creature A, creature C eats creature B, creature D eats creature C... This series of relationships between eating and being eaten is called a food chain. Herbivores eat green plants, and carnivores eat herbivores, which is the most basic food chain.

What is a pyramid? How is the ecological pyramid formed?

Ecological pyramid: The number of individuals, biomass or energy of organisms at each trophic level in the ecosystem is arranged in order of trophic levels and drawn into a diagram. It is shaped like a pyramid, so it is called an ecological pyramid or ecological cone.

Ecological Pyramid PPT, Part 2: Text Analysis

Divide the text into paragraphs and summarize the main ideas of the paragraphs.

1. (1-2) Explain the interdependent relationship between living things.

2. (3-4) Talk about the composition of the ecological pyramid.

3. (5-6) Talk about the relationship between the ecological pyramid and humans.

4. (7) Summarize that human activities must follow the laws of the ecological pyramid.

"When you look at the biological food chain, you will find an interesting phenomenon. The higher up the biological chain, the fewer animals that are not eaten by other organisms, or are rarely eaten by other organisms, and the energy contained in these animals decreases. The less. The further down, the larger the number of organisms that are devoured by other animals, and the more energy they contain."

The last two sentences of the first natural paragraph introduce to you the general laws of the biological world.

"For a beetle, one square meter of underground feeding space can meet its energy and nutritional needs, while an eagle needs to forage over dozens of square kilometers to get enough food."

This sentence compares the feeding space and activity range of "beetles" and "eagles" and uses accurate data such as "1 square meter" and "tens of square kilometers" to illustrate. Therefore, this sentence uses numbers and figures. A comparative method of illustration to illustrate the differences between plant-eating animals and carnivorous animals.

Which level in the "ecological pyramid" do you think is the most important and why?

① “Green plants are the energy basis of all living things, are primary producers, and are at the first trophic level in the food chain.”

② "Green plants on the earth are collectors of solar energy and suppliers of energy and nutrients to the earth."

③ “The efficiency of green plants in utilizing solar energy and the scale of their production determine how much energy enters the ecosystem, and also determines how many herbivores and carnivores our earth can support, so that it is in the ecological pyramid. People at the top.”

Ecological Pyramid PPT, Part 3: Expansion Exercises

1. Select any aspect of the article, draw an ecological pyramid, and write the content of each level.

2. Combine the information you collected and write a review.

3. Try some of the explanation methods used in the article and write about an item you are familiar with.

Keywords: Free download of the Chinese PPT courseware for the first volume of the sixth grade of the E-education edition, download of the ecological pyramid PPT, .PPT format;

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"Ecological Pyramid" PPT courseware download:

"Ecological Pyramid" PPT courseware download Part 1: Pre-study check 1. Read the text freely, pay attention to the correct pronunciation of the words, and read through the text. 2. Use your own words to describe what the text contains. Underline relevant sentences as you read. Word Paradise seaweed locust antelope feeding...

"Ecological Pyramid" PPT:

"Ecological Pyramid" PPT Part One Content: First Reading Perception Word Integration Antelope Meaning: ①antelope; ②refers to antelope horns. Word group: antelope (antelope) (takin) Word identification: listen (listen) (listen) (listen to teach) Sentence creation: On the hillside, a group of antelopes were grazing leisurely. ..

"Ecological Pyramid" PPT courseware 2:

"Ecological Pyramid" PPT Courseware 2 Ecological Pyramid Big fish eat small fish, small fish eat shrimp, shrimp eat plankton, plankton eat green algae. There is a food chain in the biological world. When you look at the food chain, you will find an interesting phenomenon: the higher you go up the food chain, the more organisms...

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Update Time: 2024-10-19

This template belongs to Chinese courseware E-education edition Chinese language for sixth grade, volume 1 industry PPT template

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