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sergey [27]
4 years ago
11

How do immunizations help fight the polio epidemic?

Biology
1 answer:
In-s [12.5K]4 years ago
3 0
I think the answer is D :) ........
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Pollution is not an issue in indoor environments.
nikdorinn [45]

Answer:

False

Explanation:

Indoor pollution is rather more dangerous and is caused by harmful chemicals. Due to restricted area, the density of the pollutants is higher indoor, and thus, they are build up more inside.

4 0
4 years ago
If you want to change the pitch of a sound, you have to change the ___ Question 7 options: volume speed amplitude frequency
charle [14.2K]

The correct answer is frequency.

The pitch can be defined as the quality of sound produced by the rate of vibration producing it.

It is directly related to the the frequency of the sound wave. If the frequency is increased then its pitch will also increase and vice versa.

As for normal people it is a bit difficult to differentiate between the two but the musician are trained so they can differentiate the difference between the two even if the difference is 2 Hz




8 0
3 years ago
If a boy exhibits a sex-linked trait that is carried on the X chromosome, what must be true?
ad-work [718]

Answer;

C. His mother carried at least one allele for that trait

Explanation;

-Men have a single allele of each gene on the X chromosome, inherited from their mother, and a single allele of each gene on the Y chromosome, from their father.

-A sex-linked trait is a trait that is controlled by a gene or an allele located on the sex chromosome.

-X-linked traits are maternally inherited from carrier mothers or from an affected father. Each son born to a carrier mother has a 50% probability of inheriting the X-chromosome carrying the mutant allele.

5 0
4 years ago
Read 2 more answers
Write the functions of blood cells
Marina CMI [18]
The primary function of red blood cells is to carry oxygen from the lungs to the body tissues and carbon dioxide away from the tissues and back to the lungs.
4 0
3 years ago
Read 2 more answers
To which phase of disposal of stolen goods does altering serial numbers belong
frutty [35]
The alteration of serial numbers belong to the "Recovery of stolen electrical goods" phase.

NC, sterilization or removing a serial range is usually charged as a secondary offense aboard a thievery offense. Generally, a person who alters or removes a serial range is doing this to hide the actual fact that they either scarf the property or received transferred possession. As such, there's a public interest in toilsome people who have interaction during this activity.
3 0
3 years ago
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