"The Creatures Around Us" PPT

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"The Creatures Around Us" PPT

Part One: Classroom Activities

Activity one:

Please classify the following objects according to whether they are alive or not:

Grass, snails, flowers, trees, fish, computers, cars, houses, tables, chairs

Living things: grass, snails, flowers, trees, fish

Inanimate: computer, car, house, table, chair

Definition of living thing: a living object

main groups of organisms

Living objects - living things

Inanimate objects - non-living things

Activity 2:

Observe the following courseware and think: What types of living things are there?

PPT about creatures around us, part 2: animal groups

Invertebrates

(About 95% of the total number of animals)

Annelids: earthworms, centipedes, etc.

Molluscs: jellyfish, squid, etc.

Arthropods: cockroaches, lobsters, etc.

vertebrate

(About 5% of the total number of animals)

Fish Amphibians Reptiles Birds Mammals

animals with backbones

PPT about living things around us, part 3: life phenomena of living things

1. Have a certain structure. With the exception of viruses, all living things are made of cells. Cells are the basic units of life activities.

2. Can grow

3. Able to carry out metabolism - to grow up, an organism must constantly obtain food from the outside world and excrete waste products from the body.

4. There are phenomena of reproduction, inheritance and mutation.

"If you sow melons, you will reap melons, and if you sow beans, you will reap beans." "One mother gives birth to nine sons, and the nine sons are all different." What life phenomenon does this describe?

5. Biological stress—response to external stimuli

Hydrotropism and geotropism of plant roots and phototropism of plant stems;

The hedgehog curls up into a ball, the weasel releases stinking gas, the cuttlefish sprays ink, the mantis pretends to be dead, etc.

6. Ability to adapt to and influence the environment. Survival of the fittest.

PPT about creatures around us, part 4: Summary:

Basic characteristics of living things:

1. Organisms have a certain structure (cells)

2. Organisms can grow from small to large

3. Living things must obtain matter and energy from the outside world, and at the same time be able to eliminate waste produced in the body (metabolism)

4. Organisms can reproduce and have the characteristics of inheritance and mutation.

5. Make certain responses to external stimuli (stress)

6. Organisms can adapt to the environment, and organisms can also affect the environment.

Biology around us PPT, Part 5 content: Classroom exercises:

1. Squids will spray ink when encountering enemies. This phenomenon is one of the biological characteristics ( )

A. Growth and reproduction of organisms B. Organisms respond to external stimuli

C. Living things can excrete waste D. Living things need to breathe

2. Some of the leaflets of Mimosa pudica will close and droop after being shaken. This is ()

A. The growth of organisms B. The response of organisms to external stimuli

C. Respiration of living things D. Development of living things

3. Among the following options, which one is not a living thing?

A. Viruses b. airplane c. Paramecium D. fish

4. Which of the following are life phenomena ( )

A. Volcanic eruption B. Boiling water C. Bamboo shoots springing up after rain D. Ebb and flow

5. Which of the following organisms does not have a cellular structure ( )

A. Chlamydomonas B. Yeast C. Rabies virus D. Escherichia coli

Keywords: Jiangsu Education Edition seventh grade biology PPT courseware free download, biology around us PPT download, .PPT format;

For more information about the PPT courseware "The Biological World Around Us Biology Around Us", please click the Biological World Around Us ppt Biology Around Us ppt tag.

"The Creatures Around Us" PPT courseware:

The first part of the PPT courseware "The Creatures Around Us": Understanding the creatures around us. There are many kinds of creatures, and the number is huge. There are about 500,000 kinds of plants on the earth, and more kinds of animals, about 1.5 million kinds. Are there any unique to our country living around us? Rare creatures...

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Update Time: 2024-08-31

This template belongs to biology courseware Jiangsu Education Edition Seventh Grade Biology Volume 1 industry PPT template

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