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Natali [406]
2 years ago
5

How are valves in the circulatory system similar to sphincters in the digestive system?

Biology
1 answer:
malfutka [58]2 years ago
8 0

i think it should be d

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What is point source pollution?
Anettt [7]

Answer:

  1. The United States Environmental Protection Agency (EPA) defines point source pollution as any contaminant that enters the environment from an easily identified and confined place.
  2. The classic image of a factory smokestack belching smoke and fumes into the air or an industrial discharge pipe pouring contaminated liquid into a river are some great examples of point source releases to the environment.
  3. Nonpoint source (NPS) pollution is pollution resulting from many diffuse sources, in direct contrast to point source pollution which results from a single source.

Hope this helps :)

8 0
3 years ago
The water in swimming pools typically about 80F.Mark this temperature on the Fahrenheit thermometer above.Estimate what temperat
Semmy [17]
27 degrees cel.
and 300 degrees Kel.
3 0
3 years ago
Which of the following is a nucleoside analog commonly used as a reverse transcriptase inhibitor in the treatment of HIV?
Over [174]

Answer:

Azidothymidine

Explanation:

Azidothymidine (AZT) is one of the nucleoside analogs that is used in the treatment of AIDS as it inhibits the process of reverse transcription of HIV (Human immunodeficiency virus).

The HIV replicates by making DNA copies of RNA through the process of reverse transcription. The process is driven by enzyme reverse transcriptase. Azidothymidine (AZT) serves to inhibit the activity of reverse transcriptase enzyme and thereby does not allow HIV to reproduce.

4 0
3 years ago
During which stage of development does a human learn self-care such a bathing, using the toilet, and brushing teeth?
Arte-miy333 [17]

Answer:

C. Early childhood

Explanation:

5 0
2 years ago
Testing Two-Point Discrimination
yanalaym [24]
Two-point discrimination is the minimal distance which someone can perceive two different stimuli that given simultaneously. An area with higher receptor density will have a lower two-point discrimination result since the distance between receptor is lower. 
The area that needs a high sensitivity like the palm of the <span>hands(especially the fingertips), face</span>, and tongue should be the one with lowest two-point discrimination.

In this report, a<span>nterior forearm two-point discrimination result is the lower than the fingertip. This result is suspicious since the forearm shouldn't more sensitive than the fingertip. Fingertip two-point discrimination is around 2-6mm and forearm should be much higher than 6mm.
</span>
8 0
3 years ago
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