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Harlamova29_29 [7]
3 years ago
12

What is science??????????????????/

Biology
2 answers:
MAXImum [283]3 years ago
8 0

Answer:

science is studying things on earth and space and what was before

elena-14-01-66 [18.8K]3 years ago
5 0

Science is the study and learning mechanism of the world and how everything is created as well as used today and billion of years ago

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4. If index of refraction 1 is 1.5, index of refraction 2 is 2.0, and the angle of incidence is 45 degrees, what is the angle of
motikmotik

Answer: The angle of refraction is 32°

Explanation:

By snell law, we have that:

n₁*sen(θ₁) = n₂*sen(θ₂)

Where n₁ = 1.5

n₂ = 2.0

θ₁ = 45°.

then we want to find the angle of refraction.

1.5*sin(45°) = 2*sin(x)

x = Asin(1.5*sin(45°)/2) = 32°

7 0
3 years ago
The ___________ propel debris-laden mucus away from lower respiratory system structures.
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The cilia propel debris-laden mucus away from lower respiratory system structures.

<h3>What is function of mucous membrane?</h3>
  • Another general defense against possible infections is provided by the mucous membranes that line the digestive, urinary, and respiratory tracts, as well as the nose, mouth, and lungs.
  • In order to cover and protect the more delicate cell layers underneath it and to trap waste and particle matter, including microorganisms, mucous membranes are made up of a layer of epithelial cells connected by tight junctions.
  • Because they feature ciliated appendages, which resemble hairs, the epithelial cells lining the upper portions of the respiratory tract are known as ciliated epithelial cells.
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Learn more about the Mucous membrane with the help of the given link:

brainly.com/question/25968581

#SPJ4

8 0
2 years ago
A person is swimming when a fish touches his foot. his heartbeat and breathing increase for a few seconds until he realizes the
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Parasympathetic will return her heartbeat back to normal. This nervous system is responsible for regulating the body's unconscious actions, and stabilizes it.
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3 years ago
What step of the carbon cycle is occurring when a plant absorbs carbon dioxide for photosynthesis?
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its B recharge hope that helps

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