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valentina_108 [34]
3 years ago
13

Compare a wave that has a period of 0.03 second with a second wave that has a period of 1⁄4 second. Which wave has the greater f

requency?
Biology
1 answer:
irina [24]3 years ago
6 0

Answer:

The answer is b

Explanation:

I passed the test

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A segment of DNA is 400 base pairs long and contains 2 restriction sites for the restriction enzyme HindIII. This DNA is cut wit
r-ruslan [8.4K]

Answer:

I would expect to see 3 bands after completing DNA gel electriphoresis and staining the gel.

Explanation:

The restriction enzyme Hind3 has two Recognization sites in the 400 base pair long DNA molecule.

     As a result the restriction enzyme Hind3 with generate 2 cuts in the target 400 base pair long DNA molecule.

     The number of 2 cuts in the target DNA molecule will generate 3 DNA fragments.From this point of view it can be stated that 3 bands will form after completing DNA electrophoresis and staining the gel.

5 0
4 years ago
Paramecium was found to occupy 20% of the FOV of a microscope at 40X magnification power. How many paramecium can be accommodate
lana [24]

5 Paramecium could be accommodated in this FOV.

Explanation:

FOV refers to the field of view of the microscope.

It is the maximum length or area of specimen you can observe in a single view.

If a single paramecium occupies 20 % of the Entire FOV.

Then the number of paramecium that will be accomodate 100% of FOV will be given by ,

\frac{100}{20} = 5 Paramecium.

which is equal to 5.

3 0
3 years ago
Which of the following separates the DNA strands during replication
aniked [119]

Answer:

I think it's b not sure though

3 0
3 years ago
What are the differences between Parasympathetic nervous system and sympathetic nervous system
krok68 [10]

The parasympathetic nervous system responds when the body is relaxed and at rest while sympathetic nervous system is responsible for response to emergency situation.

Explanation:

  • The sympathetic nervous system is called fight or flight division  while the parasympathetic nervous system is the rest and digest division.
  • The pre-ganglionic neurons of sympathetic nervous system arises from lumbar and thoracic regions of spinal chord while the preganglionic neurons of parasympathetic nervous system arises from the brain and sacral region of the spinal cord.
  • The sympathetic nervous system decreases the activity of digestive system while the parasympathetic nervous system increases the activity of digestive system.
  • Sympathetic nervous system dilates bronchioles while parasympathetic nervous system constricts bronchioles.
  • Sympathetic nervous system increases blood pressure while parasympathetic nervous system usually do not effect  blood pressure.
  • Sympathetic nervous system increases heart rate while parasympathetic nervous system decreases heart rate.
6 0
3 years ago
Which of the following statements is true according to the food web shown above?
statuscvo [17]

Answer:

A.

Energy flows from producers and consumers to decomposers.

Explanation:

5 0
3 years ago
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