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pishuonlain [190]
3 years ago
7

The speed of sound in air at 20 deg C. Is approximately 340 m/s True or False

Biology
1 answer:
Alenkasestr [34]3 years ago
6 0
True I’m pretty sure..
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LD
Arturiano [62]

Answer:

The best explanation for the increased lymphocyte levels in Kaya is that she was not tissue typed prior to her surgery, and her body is mounting an immune response.

Explanation:

When performing an organ transplant, it must be verified whether the organ to be transplanted is compatible -by tissue typing- with the recipient, since it is recognized as a foreign body by the body and can be rejected.

One of the immunological responses to organ rejection is called cell rejection, involving T-helper and cytotoxic lymphocytes.

<u>It is very likely that in Kaya's case the tests have not been performed correctly, and she is experiencing rejection of the organ she received</u>. The progressive increase in lymphocytes may be an indication of this.

The other options are not possible because:

  • <em>Administering </em><u><em>antibiotics</em></u><em> should not raise lymphocyte levels. </em>
  • <em>There is no evidence of </em><u><em>antigen </em></u><em>attack. </em>
  • <u><em>Immunosuppressant drugs</em></u><em> do not increase lymphocyte count.</em>
7 0
3 years ago
Blood vessels dilated by the sympathetic system are only found in the ________ system.
Margaret [11]
D. endocrine!! This is for sure it
8 0
3 years ago
A scientist uses a simulation because it:
Katena32 [7]

Answer:

The correct answer would be option D, Can help make sense of difficult problems.

Explanation:

In simple words, simulation is the Model. Simulation is the imitation of some procedure or method or process or situation. We can say it deception as well. Simulation is used as a method of analysis. When there are complex situations or processes that need to be tested before launching into the general public or to be used in the scientific researches or anything, Simulation is used. Simulation imitates the situation, checks for any errors, experiments the inputs and see the outputs of the process, method, system, etc, which they have developed. So A scientist uses simulation because it can help make sense of difficult problems.

3 0
3 years ago
Read 2 more answers
What does a blood pressure of 120/70 tell you?
Mekhanik [1.2K]

Answer:

The correct answer is option 'D':During ventricular systole, the left ventricle generates more than 120 mmHg .

Explanation:

A blood pressure of 120 mm Hg means that during the ventricular systole the blood leaves the ventricles to the rest parts of the body the pressure that it exerts on the walls of the arteries equals pressure exerted by a column of 120 mm of mercury. At the peak flow the pressure should be just exceed 120mm Hg in order to initiate circulation. The excess pressure is needed as we need to overcome the resistance of the blood in the arteries that is at a pressure of 120 mmHg

4 0
3 years ago
What three types of bedrock are typically found in a rocky shore ecosystem
a_sh-v [17]
Slate, granite, and quartzite.
4 0
3 years ago
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