"Investigating Creatures in the Surrounding Environment" Understanding Biology PPT Courseware 3

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"Investigating Creatures in the Surrounding Environment" Understanding Biology PPT Courseware 3

investigation

Investigation is one of the commonly used methods of scientific inquiry.

According to the scope of survey objects, it can be divided into census and sample survey

Sampling survey is a statistical analysis method that extracts some actual data from the population for investigation based on the principle of randomness, and uses probability estimation methods to deduce the corresponding quantitative indicators of the population based on the sample data.

Precautions:

1. First design a questionnaire.

2. Investigation is a scientific work and must be observed carefully and recorded truthfully. You cannot choose based on personal likes and dislikes.

3. Protect organisms and the environment in which they live, do not damage plants or animals, and do not destroy the living environment of organisms.

4. Pay attention to safety. Act together as a group, do not climb high places, and do not go into the water.

5. If the scope of the investigation is relatively large, a sampling survey should be conducted.

The meaning of biological classification

Classification of organisms is conducive to human understanding and research of organisms, so as to rationally protect and utilize biological resources.

Which of the following is not a survey?

A Census

B Forest resources survey

C Water resources sampling survey

D Observe the cow carefully and take photos

1 It is not advisable to use anything other than [ ] in investigation activities

A. Fly over the walls and pick wild fruits from high places. B. Avoid animals that you don’t like.

C Pick fresh wild fruits and taste them while they are fresh D Record truthfully

2. In the activity of investigating campus biology, which of the following students did correctly?

A Xiaojun found several unfamiliar plants, so he pulled them out and took them home to study.

B Xiaomei pushed aside the grass, and a cricket jumped out. It quickly jumped outside the campus. Xiaomei recorded it.

C Xiaowei’s investigation record contained Centipede, but other students did not. Xiaowei decided to delete it.

D Xiao Ming found a mouse. It was so disgusting that I didn’t record it.

The following are the names of organisms recorded by Xiao Ming during the campus survey: Setaria, torch red, red spider, pine, elm, earthworm, bird, string red, lilac, willow, mountain peach, cocklebur, dragonfly, mosquito, rattlesnake, marigold .

(1) Please help him divide into two categories.

Animals: red spiders, earthworms, birds, dragonflies, mosquitoes, rats

Plants: foxtail, torch red, pine, elm, red lilac, lilac, willow, mountain peach, cocklebur, marigold

(2) Please tell everyone why they are living creatures?

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"Investigating Creatures in the Surrounding Environment" Understanding Biology PPT Courseware 7:

"Investigating Creatures in the Surrounding Environment" Understanding Biology PPT Courseware 7 Learning Objectives 1. Understand the types of creatures around you and their living environment, and cultivate the ability to investigate and divide labor. 2. Think independently and work in groups; learn how to investigate and record. 3. Pass...

"Investigating Creatures in the Surrounding Environment" Understanding Biology PPT Courseware 6:

"Investigating Organisms in the Surrounding Environment" Understanding Biology PPT Courseware 6 Review the basic characteristics of organisms: Organisms need nutrients to live. Organisms can breathe. Organisms can excrete waste products produced in the body. Organisms can respond to external stimuli. Organisms can grow and reproduce. .

"Investigating Creatures in the Surrounding Environment" Understanding Biology PPT Courseware 6:

"Investigating Organisms in the Surrounding Environment" Understanding Biology PPT Courseware 6 Review the basic characteristics of organisms: Organisms need nutrients to live. Organisms can breathe. Organisms can excrete waste products produced in the body. Organisms can respond to external stimuli. Organisms can grow and reproduce. .

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Update Time: 2024-11-21

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

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