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Studentka2010 [4]
3 years ago
5

How do scientists explain the discovery of crinoids in the Wasatch Mountains?

Biology
1 answer:
Nostrana [21]3 years ago
6 0
<span>The mountains were once seas. The land was forced up by tectonic motion when the mountains were formed. The Sahara also used to be a sea and has a valley full of the fossilized remains of an extinct species of whale. It is generally agreed upon that two plates colliding caused the uplift that created the mountainous zone. Same for the Himalayas.</span>
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Sucrose and lactose are disaccharides that have the same chemical formula, C12H22O11. However, these sugars have different chara
d1i1m1o1n [39]
The answer is <span>Disaccharides are different in structure because they are not made up of the same monosaccharides, and this gives them different properties.

Both sucrose and lactose are disaccharides, however, they are made up different monosaccharides:
Disaccharide = monosaccharide + monosaccharide
Sucrose = glucose + fructose
Lactose = glucose + </span>galactose 

Since they have different structures, their characteristics and behaviour in chemical reactions must differ, too.
3 0
2 years ago
Upon examining a crime scene you don't locate any visible prints. To identify latent prints you will have to use a powder. There
shusha [124]
<span>1. The investigator should use fluorescent fingerprint powder, so that the prints will be visible on the dark surface when a special kind of light is used. 

2. A possible cause of death would be asphyxia, and is one of the most common causes of death that involve murder and violence. 

3. C. thin layer chromatography and Infrared spectrometry 

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5 0
2 years ago
Read 2 more answers
Why are phytoplankton essential to aquatic life zones?
AnnyKZ [126]
Phytoplankton are essential to aquatic life zones because: they provide the basis of food chains. Log in for more information. Added 5/22/2016 9:52:12 AM This answer has been confirmed as correct and helpful.
8 0
2 years ago
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A response that is uniquely directed against pathogenic bordetella pertussis would involve what component?
xxMikexx [17]

Answer:

Antibodies

Explanation:

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The pathogenic mechanism of Bordetella pertussis is also known as virulence factor. These virulence factors are known to include adhesins such as filamentous haemagglutinin, fimbriae and pertactin, which allow B. pertussis to bind to ciliated epithelial cells in the upper respiratory tract.

It is known to be the agent of whooping cough, a highly contagious respiratory disease, dramatic for infants and also for elderly and pregnant women.

In this case, the antibodies will be the response that is uniquely directed against the organism. It is said earlier that this organism is an opportunistic one, this means that it causes infection when the immunity is down. So, when the immunity is empowered , it will definitely fight against the organism

3 0
2 years ago
Choose the magma type which is most viscous: <br> basaltic <br> andesitic<br> rhyolitic
Leviafan [203]
The third option "Rhyolitic" would be your answer.
6 0
3 years ago
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