"The Relationship between Organisms and the Environment" Understanding the Biosphere PPT Courseware 5

Description

"The Relationship between Organisms and the Environment" Understanding the Biosphere PPT Courseware 5

teaching objectives

1. Knowledge goals

1. Know what the biosphere is.

2. Understand the impact of abiotic factors on living things.

3. Learn to explore the impact of light on the life of rat women.

4. Understand the impact of biological factors on organisms.

5. Understand the adaptation and impact of organisms on the environment.

2. Capability goals

Develop experimental and analytical abilities through learning and exploring the impact of light on the lives of rat women.

3. Emotional goals

Establish awareness of protecting animals by learning about the impact of biological factors on living things.

1. Ecological factors in the environment

——The life of living things cannot be separated from a certain environment.

The environment not only refers to the living space of organisms, but also includes various factors around it.

think about it

What factors in the environment will affect the life and distribution of organisms?

1. Explore the effects of abiotic factors on plants

What abiotic factors affect other plants?

2. Explore the impact of abiotic factors on animals

Do abiotic factors affect animals?

Do abiotic factors affect animals?

Thoughts and Questions

1. The general process of scientific inquiry (6 steps)

2. Think about P15 discussion

3. Why design two different environments, bright and dark?

4. How to ensure that the experimental results are only caused by different lighting?

5. What is a controlled experiment?

Experimental program

1. The whole class is divided into 6 groups, with 6 people in each group. Pay attention to division of labor and cooperation.

2. Put the rat woman into the experimental device, use tweezers to place the rat woman in the center of the petri dish, cover the lid and let it sit for 8 minutes, and carefully observe where the rat woman crawls.

3. After eight minutes, count how many rats there are in the light and dark places, record them, and draw a conclusion.

3. Adaptation and impact of organisms on the environment

Camels living in hot and dehydrated deserts produce very little urine and only sweat when their body temperature rises to 46°C.

The underground roots of camel thorns living in the desert are much longer than the aboveground parts.

For seals living in cold seas, the thickness of subcutaneous fat on their chests can reach 60 mm.

Class summary

Living things can adapt to certain environments and can affect certain environments.

In the long process of interaction between organisms and the environment, the environment continues to change and organisms continue to evolve.

The interaction of organisms and their environment creates today's thriving biosphere.

Classroom exercises

1. The sum of all () and () on the earth is called the biosphere.

2. The factors that affect organisms ( ) and ( ) in the environment are called ecological factors.

3. Environmental factors that affect the survival of organisms include () and ()

4. The general process of inquiry starts from () and (), and the design of the experimental plan should be carried out closely around the proposed () and ().

5. In order to ensure that the experimental results are only caused by one factor in the control experiment, other conditions should be maintained ().

Class exercises

1. Which of the following organisms is in a competitive relationship ( )

A A cow and a cat B A cat and a mouse C Rice and wild grass D A group of ants

2. The main reason why food is not easy to spoil in winter is ( ) factors

ATemperature BWater CSunlight DAir

3. The transpiration of plants can increase the humidity of the atmosphere, which means ( )

A. The growth of plants requires transpiration. B. The atmosphere can affect the survival of plants.

C organisms can affect the environment D organisms can adapt to the environment

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For more information about the PPT courseware "The Relationship between Organisms and the Environment to Understand the Biosphere", please click the "The Relationship between Organisms and the Environment ppt to Understand the Biosphere" ppt tag.

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Update Time: 2024-11-22

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

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