"Chameleon" PPT download

"Chameleon" PPT download
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Qingdao Edition Fourth Grade Science Volume 2 pptx 6 MB
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"Chameleon" PPT download

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"Chameleon" PPT download

Part One: Content Import

protective color of animals

Animals adapt to their habitat and have body colors that are similar to the color of the environment, which is called protective color.

Animal warning colors

The brightly colored markings found on some animals with foul odors or stings are called warning colors.

animal mimicry

The appearance shape or color spots formed by some organisms during the evolution process are abnormally similar to other organisms or non-living things, which is called mimicry.

Some animals have different protective colors in different seasons. For example, the ptarmigan living in the cold zone has pure white feathers in the snowy winter, and changes to brown feathers in the summer, which is very similar to the mottled colors of the summer tundra.

The two pictures below are of ptarmigan in summer and winter.

Protective colors, warning colors and mimicry are all adaptive characteristics gradually formed by long-term natural selection during the evolution process of organisms.

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"Chameleon" PPT quality courseware:

"Chameleon" PPT quality courseware Part 1: Text introduction There is an animal in nature, and its name is a lizard. Lizards, commonly known as chameleons, use protective coloration to escape predators. Chameleons can constantly change as the color and temperature of their environment change...

"Chameleon" PPT courseware free download:

"Chameleon" PPT courseware free download Part 1: Introduction to the author Chekhov was a Russian critical realist writer at the end of the 19th century. Together with Maupassant, O. Henry, and Mark Twain, he is known as the world's four major short story masters. His works include "Installation" "The Man in the Box",..

"Chameleon" PPT free courseware download:

"Chameleon" PPT free courseware download Part 1: Learning objectives 1. Clarify the plot of the story, learn the writing method of expressing the character of the character through vivid dialogue, and analyze the character image. 2. Understand the role of language description and detailed description in novels. ..

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Update Time: 2024-09-30

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