"We We Have Different Appearances" Biological Diversity PPT Download

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"We We Have Different Appearances" Biological Diversity PPT Download

Part One Content: Learning a New Lesson

Observe our differences

Tip: Observe the similarities and differences in appearance within the group. Choose 1 to 2 facial features, observe them carefully, and draw what each person looks like.

Through observation and comparison, we found:

The same facial features may or may not be the same between people. For example, among two people, one has double eyelids and the other has single eyelids.

Are our looks unique?

Which of our physical features are the same and which are different? If these two facial features are combined, how many different types of people will there be?

And so on:

Three facial features will produce eight different looks; four facial features will produce 16 different looks; five combinations will produce 32 different looks...

We all have different looks PPT, the second part: expansion and extension

After long-term research, some experts have discovered that when skin color is inherited, people have no choice. It always follows the natural law of "multiply and average" and you will be branded with the "synthetic" color of your parents.

During skin development, although the epidermis, dermis and matrix are all growing together, the soft subcutaneous tissue grows faster than the hard epidermis, which exerts a steady upward pressure on the epidermis, forcing the slower-growing epidermis to shrink.

We all have different looks PPT, the third part: Summary of this lesson

The same organism has different traits and characteristics, and different combinations of these characteristics create diverse living individuals.

We all have different looks PPT, part 4 content: exercises for this lesson

1. Fill in the blanks

1. Living things have different ( ), and different combinations of these characteristics create ( ).

2. Between different individuals of the same organism ( ).

3. The combination of three facial features will produce ( ) different looks, and the combination of four types will produce ( ) different looks.

2. Multiple choice questions

1. Five facial features will be combined into ( ) appearance.

A.32 species B.16 species

C.8 species D.12 species

2. Skin color is generally described as ( ) trait

A. Four shapes B. Three traits

C. Six traits D. Two traits

We all have different looks PPT, Part 5: Homework

To explain, can we find two people who look exactly the same? Why?

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Update Time: 2024-09-30

This template belongs to science courseware Science Edition for Sixth Grade Science Volume 1 industry PPT template

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