"Characteristics of Biology" Understanding Biology PPT Courseware 3

Description

"Characteristics of Biology" Understanding Biology PPT Courseware 3

learning target

1. Observe living and non-living things and compare their differences.

2. Give examples of common characteristics of living things.

Observation is the basic method of scientific inquiry

Basic requirements for observation

1. Have a clear purpose.

2. Be comprehensive and meticulous, seek truth from facts, and record in a timely manner.

3. Have a plan and be patient.

4. Think positively and ask more “why” questions.

Think and discuss

1. The fleshy stem of Lithops looks like a stone. Why is it said to be a living thing?

2. The stalactite in the cave can grow slowly. Why is it said that it is not a living thing?

3. How to determine whether an object is alive? What characteristics do living things have in common?

common characteristics of living things

Invite students to self-study relevant content and summarize with pictures:

What characteristics do living things have in common?

common characteristics of living things

1. Biological life requires nutrition.

2. Living things can breathe.

3. Biological organisms can eliminate waste products produced in the body.

4. Organisms can respond to external stimuli.

5. Living things can grow and reproduce.

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

7. Except for viruses, all living things are composed of cells.

Standard training

1. Which of the following objects belongs to living things ( )

① Butterfly ② Coral ③ Mushroom ④ Intelligent robot ⑤ Satellite

A.①②③B.①③C.②④D.④

2. The beautiful scenery of Daming Lake in Jinan was visited by students from a school’s biology interest group.

It was found that there are aquatic plants, lotus roots, fish, ducks and other creatures living in the lake. under

It is the description of the common characteristics of these creatures by these students. The error is ( )

A. Both can excrete waste products produced in the body. B. Both have genetic and mutated characteristics.

C. They are all made of cells. D. They can all make organic matter by themselves.

3. In nature, what kind of life activity does the peacock spread its tail? ( )

A.Beautify the environment B.Grow

C. Obtain nutrients D. Reproduce

4. Among the following ancient poems, which one describes the growth and development of living things ( )

A. Swallows fly when the mud melts, and mandarin ducks sleep in the warm sand.

B. Red beans grow in the south, and when spring comes, they will sprout a few branches.

C. Falling red is not a heartless thing, it turns into spring mud to protect flowers

D. The sound of wind and rain at night makes you wonder how many flowers have fallen.

Think about the answer:

On the weekend, Xiao Bing and Xiao Ming went to the park to play together. There were so many things in the park. In the distance, there were mountains, water, and trees. There were grasses nearby. On both sides of the green road, insects occasionally jumped out of the grass. On the mountains It is full of trees and birds are singing in the woods. When I came to the river, I saw many small fish swimming in the river. The scenery in this park fascinates them. Please help them find out which of them are living things and which are not. Tell me what is the basis for your judgment?

Answer: Living things: people, trees, grass, insects, birds, fish;

Non-living things: mountains, water, rivers, etc.

Judgment basis: whether they have common characteristics of living things.

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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: 2024-09-03

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

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