"Who Choose Them" Biological Diversity PPT Courseware 5

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"Who Choose Them" Biological Diversity PPT Courseware 5

What kind of environment might they live in?

Require:

1. Read the text carefully first, and then look at the pictures based on the text.

2. When looking at the picture, look from top to bottom. The two frogs in the first row are the mother frog and the father frog. Below are their offspring, with different skin colors.

3. Think again: Why are all the frogs in the fields green; and all the frogs in the desert are yellow?

Darwin research information:

These examples illustrate:

Natural selection: survival of the fittest, survival of the fittest

The birds evolved into a medium-beaked variety on a certain island. The medium-beaked finches can eat both small and large fruits. They are obviously better than the original small-beaked finches. However, one time, they suddenly encountered a severe crop failure of large fruits. The medium-beaked finches On the contrary, it couldn't eat the small-beaked sparrows that specialized in eating small fruits. Later, they encountered many stronger large-beaked sparrows flying in. In the end, the small-beaked sparrows still had their advantages, and the population did not decrease but increased.

They all live in the Arctic. What characteristics do they have in common?

What advantages do their morphological characteristics have in the environment in which they live?

How do animals raised in captivity compare to their wild counterparts?

What is our purpose in cultivating rice?

What is the difference after artificial cultivation?

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For more information about the PPT courseware "Biological Diversity Who Chooses Them", please click the Biological Diversity PPT Who Chooses Them PPT tag.

"Who Choose Them" Biodiversity PPT teaching courseware:

"Who Choose Them" PPT Teaching Courseware on Biological Diversity Part One: Introduction of New Lesson The dinosaur family that once dominated the earth has perished, but the little mantis of the same era still lives on the earth. What determines the fate of life on Earth? ..

"Who Choose Them" Biological Diversity PPT Download:

"Who Choose Them" Biological Diversity PPT Download Part One: New Course Lecture: The Departure and Residence of Frogs What kind of environment might they live in? Just like a mother cat and a father cat give birth to kittens of different colors, the offspring of frogs also have different colors...

"Who Choose Them" Biological Diversity PPT:

"Who Choose Them" Biological Diversity PPT Part One: The Go and Stay of Frogs Observe two frogs, what kind of environment might they live in? Just like a mother cat and a father cat give birth to kittens of different colors, the offspring of frogs also have different colors...

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Update Time: 2024-11-22

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

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