"Characteristics of Biology" Understanding Biology PPT Courseware 8

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"Characteristics of Biology" Understanding Biology PPT Courseware 8

1. what is biology

Today we will focus on living things and the environment in which they live, and learn more about the common characteristics of living things.

These objects of different shapes each have different shapes, but they all have common characteristics. Some of them are alive and some are not alive. Ask students to think about which objects are non-living things and why?

1. Biological life requires nutrition

Living things need to continuously obtain nutrients from the outside world throughout their lives to maintain their survival.

Animals (anima1) cannot make organic matter on their own. They feed on plants or other animals and obtain nutrients from them. Cheetahs often "hide" their food in trees to avoid being eaten by other predators.

Plants absorb water, inorganic salts and carbon dioxide from the outside world, and produce the substances they need through photosynthesis, such as glucose, starch, etc. These substances are unique to living organisms, so they are called organic compounds.

2. Organisms can breathe

Most living things need to breathe in oxygen and breathe out carbon dioxide.

3. Biological energy removes waste products produced in the body

During the life of living things, a variety of wastes are continuously produced in the body and can be excreted from the body

Animals and people remove waste from their bodies in a variety of ways. For example, people can eliminate waste products from the body through sweating, exhaling air, and urinating.

Creatures have other characteristics as well. For example, with the exception of viruses, all living things are composed of cells.

Think about it, do you have these characteristics yourself? Name any creature you are familiar with. Does it also have these characteristics?

Learning biology requires not only learning biological knowledge, but also learning methods of scientific inquiry and cultivating the ability of scientific inquiry. Hands-on scientific inquiry is an important way to learn biology.

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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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"From species to kingdom" Classification of organisms according to their characteristics PPT courseware 6:

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"From species to kingdom" Classification of living things according to their characteristics PPT courseware 5:

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Update Time: 2024-07-30

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

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