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USPshnik [31]
2 years ago
8

Explain the steps that you would use to focus on a specimen under a compound light microscope.

Biology
1 answer:
Rashid [163]2 years ago
8 0

To start, move the objective lens to its lowest power setting. Place a slide on the stage with the label side up and the cover slip in the middle. You can only use the coarse focus knob when the power is low. If you can't see anything, move the slide a little while you look and focus. If nothing shows up, turn down the light and move the slide a little while you're looking and focusing. Once you're in focus on low power, move the slide to make the object of interest in the middle of it. Turn the objective to medium power and only change the fine focus. If you need to, turn the objective to high power and only adjust the fine focus.

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How would you define the word life to a young child?
lozanna [386]
I would define it by saying life is full of love,friends,family, and arguments but in the end everything will turn up
4 0
3 years ago
Why do methane is a gas at room temperature and water is a liquid, even though both molecules are similar in size and mass?
emmainna [20.7K]

Answer:

Water can hydrogen bond.

Explanation:

Liquids become gases once they are heated to a certain temperature. Heat is a form of energy. This change occurs when the intermolecular forces between the liquid molecules are energized enough to break. This breakage is necessary because gaseous molecules exist individually and do not interact with one another. That being said, it takes more heat to boil water because its intermolecular forces are stronger than methanes.

Intermolecular forces (IMF) are a result of partial charges on the molecular atoms that cause temporary bonds to form between molecules.

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Water, however, is a polar molecule, with the hydrogens having strong partial positive charges and the oxygens having strong partial negative charges. This allows water to participate in a very strong IMF called hydrogen bonding. Again, because these partial charges are so strong, the water molecules can form stronger IMFs.

<u>*When molecules have stronger IMFs, they require more energy(heat) to overcome them.*</u>

3 0
2 years ago
Many organisms can reproduce asexually through mitosis, while other organisms reproduce sexually, and their cells carry out meio
Darina [25.2K]

Answer:

C

Explanation:

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In a case of heavy predation, the prey organism will depend on diverse number to keep its species from getting extinct. Hence, undergoing mitosis to duplicate itself asexually will be most beneficial in this scenario as a large number will increase the chance that some of them will not be a victim of predation.

3 0
3 years ago
Hemophilia is an X-linked recessive disorder (Xh) that is passed through generations and can be traced by using a pedigree. What
Radda [10]
Since hemophilia is an X-linked recessive disorder, the probability depends on the X alleles.
So, if father has dominant allele (H), the probability that a <span>female child would suffer from hemophilia (genotype: hh) is 0%, no matter of mother's genotype:
 
                    Father              Mother
Parents:       H             x          Hh
Daughter:     HH or Hh

</span>      Father              Mother
Parents:       H             x          HH
<span>Daughter:     HH
</span>
      Father              Mother
Parents:       H             x          hh
<span>Daughter:     Hh or Hh
</span>
But, if the father has recessive allele, the probability that a <span>female child would suffer from hemophilia (genotype: hh) will depend on mother's genotype.
If mother is dominant homozygous, there will be 0% of possibility:
</span>                       Father              Mother
Parents:             h          x          HH
<span>Daughter:     Hh
</span>
If mother is recessive homozygous, the possibility is 100%:
                    Father              Mother
Parents:           h         x         hh
<span>Daughter:     hh
</span>
If mother is heterozygous, the possibility is 50%:
                   Father              Mother
Parents:          h         x         Hh
<span>Daughter:     Hh or hh</span>

6 0
3 years ago
Read 2 more answers
The two holes in your nose are called?
IceJOKER [234]
Hello there!

The two holes in your nose are called "Nostrils"

Hope this helps! ;)

~Lexa
6 0
3 years ago
Read 2 more answers
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