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professor190 [17]
3 years ago
7

If someone helps I will Like it 5 star and BRAINLEST maybe.

Biology
2 answers:
erik [133]3 years ago
4 0

Answer:

B.  an electron and a proton

Explanation:

An element is a pure substance that cannot be broken down into any other substances because it consists of only one type of atom. Each element consist of three types of sub-atomic particles known as protons, neutrons, and electrons. Protons having a positive charge, neutrons a neutral charge, and electrons a negative charge. Both protons and neutrons are both the same size, but have opposite charges. Protons and electrons attract each other because opposite charges have a attraction to each other.

Therefore, Option 2: An electron and a proton, is correct.

Allushta [10]3 years ago
4 0
Protons and electrons
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For More Information:

brainly.com/question/17846775

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Mandarinka [93]

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Hope it helped,



BioTeacher101

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3 years ago
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sladkih [1.3K]
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Choice A is illogical. A single experiment does not confirm a theory as true. Multiple successful trials are needed for one to even consider a hypothesis to be accepted as a theory. 

Choice B is wrong. If a scientist finds a new way to test a hypothesis, experimental methods do change. Note that when there are additional ways to test a hypothesis, a scientist should test it with additional methods. 

Choice D is incorrect. If someone finds a way to test a new hypothesis, it would not be made into law since there is more information regarding the theory. This means that it would remain a theory until one can prove that it can't be tested using different methods.
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Yakvenalex [24]

Answer:

on bird beaks?

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Hope I'm making sense...good luck.

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3 years ago
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