"Characteristics of Biology" Understanding Biology PPT Courseware 6

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"Characteristics of Biology" Understanding Biology PPT Courseware 6

1. Common characteristics of living things

1. Living things need nutrition

2. Living things can breathe

3. Biological energy can eliminate waste produced in the body

4. Organisms can respond to external stimuli

5. Organisms can grow and reproduce

6. All living things have the characteristics of inheritance and mutation.

Discussion summary

1. All need nutrition.

2. All can breathe.

3. It can remove waste from the body.

4． can respond to external stimuli

5. All can grow and reproduce.

6. All living things have the characteristics of inheritance and mutation.

7. All living things except viruses are composed of cells.

2. How do you determine whether an object is alive?

The above shows that living things have the characteristics of nutrition, respiration, excretion, response to stimuli, growth and reproduction, that is, objects with these characteristics are living things.

test

1. Among the following objects, which one belongs to living things ( )

① Butterfly ② Black fungus ③ Stalactite ④ Robot ⑤ Moss

A. ①②③ B. ①③⑤ C. ①②⑤ D. ③④⑤

2. The phenomenon described in "The mantis stalks the silkworms, followed by the oriole" reflects which basic characteristic of living things ( )

A. Living things need nutrients. B. Living things can grow.

C. Biological energy can eliminate waste from the body. D. Biological energy can breathe.

3. What characteristics does the life phenomenon of "the grass grows in the original land, and the grass dries up every year" illustrate the characteristics of living organisms ( )

A. Breathe B. Eliminate waste

C. Respond to stimuli D. Growth and reproduction

4. When sea cucumbers encounter a sneak attack by natural enemies, they will quickly expel their internal organs and let the natural enemies eat them to escape. This phenomenon reflects ( )

A. Respiration of living things B. Movement of living things

C. Organisms need to eliminate waste. D. Organisms respond to external stimuli.

5. Which characteristic of living things is described in the following idioms?

1) Hungry tiger pounces on food: Living things need nutrients to survive

2) Sweat: biological energy excretes the waste produced

3) A brief glimpse into the water: biological growth and reproduction

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For more information about the "Understanding the Characteristics of Biological Organisms" PPT courseware, please click the "Understanding Biological Characteristics ppt" tag.

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Update Time: 2024-11-24

This template belongs to biology courseware People's Education Edition seventh grade biology volume 1 industry PPT template

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