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Pepsi [2]
3 years ago
5

How did the skeleton change during bird evolution?

Biology
1 answer:
Bingel [31]3 years ago
7 0

Answer:

reduction in birds skeleton

Explanation:

The reduction in a bird's skeletal weight is largely a result of hollow construction of the skeleton. The fusion or loss of individual bones reduces the number of movable joints in the bird's skeleton, making it rigid and better adapted as the internal framework of a flying machine.

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iconic bond -> sharing of many electrons

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hope this helps...

4 0
3 years ago
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8 0
3 years ago
The chemical name for sand Is silicon dioxide. The 2 elements found in a sample of the sand are blank and blank
Nuetrik [128]

Answer: The two elements found in sand are silicone and oxygen.

Explanation:

Sand is a granular substance that contain different smaller pieces of rocks and minerals. It is formed fromm weathering of rocks or breakdown of larger particles of rock into smaller pieces. Silicon dioxide or silica is a compound found in sand and also glass. Silicon dioxide is the chemical formula of sand. Silicon dioxide is formed when silicone reacts with two molecules of oxygen to form silicon dioxide. The major elements in sand is silicone and oxygen.

4 0
3 years ago
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3 years ago
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