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alexgriva [62]
3 years ago
7

A covalent bond is likely to be polar if _____________

Biology
1 answer:
Sidana [21]3 years ago
3 0

Answer:

The correct answer d. one of the atoms sharing electrons is much more electronegative.

Explanation:

If one of the atoms is more electronegative than the others, like the oxygen in the water molecule, it will allow this atom to attract the other's electrons turning itself into a negative pole and turning the others into a positive pole. In the water, oxygen is more electronegative and that's why it becomes the negative part and the hydrogens become the positive.

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What is the genus of the popular fossils which are similar to "lucy"?
mylen [45]

Answer

          The common name of Lucy is Southern ape, while their scientific genus name is <em>Australopithecus afarensis</em>.

7 0
3 years ago
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Which of these organic molecules functions to help speed up biological chemical reactions?
Readme [11.4K]
A) lipids because they are used to speed up chemical reactions 
5 0
4 years ago
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The Punnett square shows a cross between two parents. The allele (H) represents the mutated gene that causes Huntington’s diseas
Lelu [443]

Answer:

The disease is autosomal dominant.

Explanation:

Huntigton's disease is an autosomal dominant disease because the allele for this disease is present on an autosomal chromosome and the person with even one mutated allele (H) can develop the disease even if he has one normal allele (h) too. If a person is affected with Huntigton's disease, there are 50 percent chances that the children will also suffer from the disease.


For example: A father is suffering from Huntigton's disease but mother is normal. Let us see how it will be passed to kids.


P1:                                   Hh :           hh

Gametes:                         H :         h:      h:       h

Offspring:                         Hh:       Hh:      hh:        hh

                                               50%        :       50%

Therefore, 50 percent chances are there that the kids will have disease even if only parent suffers from it.

8 0
4 years ago
Positive selection tests to see if the ______ of a T-lymphocyte can recognize and bind to an MHC molecule.
DENIUS [597]

Positive selection tests to see if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.

<h3>What is a T-lymphocyte?</h3>

A T-lymphocyte is a special type of immune cell that is generated inside the bone marrow.

The T-cell receptor (abbreviated as TCR) is a protein located on these immune T lymphocytes.

In conclusion, Positive selection identifies if the TCR of a T-lymphocyte can recognize and bind to an MHC molecule.

Learn more about T-lymphocytes here:

brainly.com/question/17025187

#SPJ1

7 0
3 years ago
Which of these is an environmental change that occurs rapidly?
lozanna [386]
Out of all the options, only "Volcanic Eruption" is the rapid change

In short, Your Answer would be Option D

Hope this helps!
8 0
3 years ago
Read 2 more answers
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