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dalvyx [7]
3 years ago
9

Describe the differences in how the chromosomes line up in the middle of the cell during metaphase 1 of meiosis and metaphase of

mitosis
Biology
1 answer:
Nastasia [14]3 years ago
8 0
Two chromosomes get arranged on the metaphase plate and are attached to the complete spindle.
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The sole of a gecko's foot is covered with millions and millions of small, dry "hairs" that make direct contact with surfaces, a
tamaranim1 [39]

Answer: Van der Waals forces

Explanation:

Van der Waals forces are weak intermolecular forces that depend on the distance between two particles. They are caused by correlations in the change in polarization between two nearby particles. To put it in other words, when a particle changes its polarization (becomes more positive on one end and more negative on the other), so does the adjacent particle, and the next one, and so on. This causes these particles to stick together weakly.

The tiny "hairs" increase the surface area of the gecko's feet in contact with the wall, which makes the bond stronger and allows it to support all of its weight.

Because experiments have shown that geckos stick well to both hydrophobic and hydrophilic surfaces, we can assume there aren't any hydrogen bonds present.

Ionic bonds can't be present either because geckos wouldn't stick to electrically neutral surfaces, as these bonds require charged molecules.

6 0
3 years ago
What the answer to this question
IrinaVladis [17]
You didnt even gave a question.Sorry but i cant answer.
3 0
3 years ago
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What is the definition of Mercury barometer?
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A device that measures atmospheric pressure that’s displayed by the height of a column of mercury.
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3 years ago
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The client was diagnosed with cocaine abuse at age 30. When the client was 23, the client was diagnosed with major depressive ep
allochka39001 [22]

Answer:

d-The client most likely has a dual diagnosis since she has both a substance dependence and depression.

Explanation:

What is dual diagnosis?

An individual with dual diagnosis shows both a mental disorder and an alcohol or drug situation. These situations is seen in unison more often. Nearly half of people who shows a mental disorder do express substance use disorder at a point or the other. The interrelationship of the two situation can worsen both.

Why do substance use disorders and mental disorders is often seen in unison?

Thou they occur together, but it can't be said that one prompt the other, even if one started earlier as in our case study.

There are three reasons showing why they occur in unison:

•Generally, risk factors may lead to both mental disorders and substance use disorders. Such as genetics, stress, and trauma.

•Mental disorders can lead to drug use and substance use disorders. Using drugs or alcohol to find relief (self-medication). This could lead to addiction.

•Substance use and addiction can contribute to the occurrence of a mental disorder. Causes brain changes.

What are the treatments for dual diagnosis?

Individuals with dual disorder should treat both conditions. For the treatment to be operative, there is need to abstain from alcohol or drugs. Treatments may involve behavioral therapies and medicines. Also, support groups importance for emotional and social support cannot be neglected.

6 0
3 years ago
Once transcribed, eukaryotic mRNA typically undergoes substantial alteration that includes
aleksley [76]

Answer: B

Explanation:

B describes the RNA processing, which only occurs during eukaryotes and invovles the splicing out of introns and putting together of extrons.

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