"The Relationship between Organisms and the Environment" Understanding the Biosphere PPT Courseware 2

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"The Relationship between Organisms and the Environment" Understanding the Biosphere PPT Courseware 2

think about it

Environmental factors affecting rice survival

abiotic factors

Sunlight, water, temperature, soil, air, etc.

biological factors

Frogs, snakes, voles, locusts, etc.

1. The survival of living things depends on a certain environment

Various factors in the environment that directly affect biological life are called ecological factors

The influence of abiotic factors

1.The influence of water

2. Effect of temperature

3. The influence of sunlight

Analyze the impact of abiotic factors on biological survival

Observe these pine trees and think about what factors affect their different shapes?

What do you think is the reason why there are few plant species and short plants in the desert?

The size of their ears is mainly related to which factor in their living environment?

2. Adaptation and impact of organisms on the environment

1. Organisms adapt to the environment

The bristles and mucus on the earthworm's body help it move and breathe in the burrow

2. The impact of organisms on the environment

Biological factors: refer to other organisms that affect the lives of certain organisms

(1) Predation relationship: the relationship between organisms eating and being eaten

(2) Competition relationship: the relationship between organisms of different species or the same species competing for food, resources, living space, etc.

Exploration: Environmental factors affecting the distribution of rat women

Purpose of study: Analyze the environmental factors that affect the distribution of rat women.

Recommended equipment: petri dishes (or other containers), absorbent paper (or cardboard) and clocks, etc.

Method steps:

1. Students are divided into groups of 4-5 people. Each group observes the living environment of rat women before class and captures about 20 rat women (note: do not damage lawns or flower beds in schools or communities, etc.). Ask questions about the living environment of the Rat Woman.

While catching the rat woman, we discovered that it lives in a __________ environment, which is characterized by ____________________. We'd love to know: _______________

2. Therefore, we raised an inquiry question which is_______________

3. By communicating where you caught rat women, make assumptions about the main factors that affect the distribution of rat women.

The assumption we make is_____________

Reinforcement exercises:

1. Bananas cannot grow well in northern areas. The main factors affecting their growth are ( )

A. There is less rainfall in the north B. The temperature is low in the north

C. Unsuitable soil pH D. Insufficient light intensity

2. Which of the following is a cooperative relationship between organisms ( )

A. Seven-spotted ladybug preys on aphids

B. A group of sparrows go looking for food together

C. Two dogs fighting over a bone

D. Birds chirp around to occupy the nest area.

3. There are few biological species in desert areas. The reason for this phenomenon is the lack of ()

A. Air B. Moisture C. Sunshine D. Suitable temperature

4. Citrus does not grow well in the north. The main abiotic factors that affect the distribution of citrus are ( ).

A. Sunshine B. Air C. Moisture D. Temperature

5. Which of the following is not an abiotic factor ( ).

A. Herbivores B. Sunlight C. Air D. Temperature

6. In a piece of farmland, the biological factors that affect the life of wheat are ( ).

A. Sunshine B. Temperature C. Field weeds D. Moisture

7. Between organisms of the same species ( ).

A. There is mutual help and struggle. B. No mutual help and no struggle.

C. Only help each other but not fight D. Only fight but not help each other

8. The relationship between living things and the environment is ().

A. The environment is always beneficial to the survival of living things

B. The environment is always unfavorable to the survival of living things

C. Biological and environmental interactions

D. There is no relationship between organisms and the environment

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Update Time: 2024-10-03

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

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