1answer.
Ask question
Login Signup
Ask question
All categories
  • English
  • Mathematics
  • Social Studies
  • Business
  • History
  • Health
  • Geography
  • Biology
  • Physics
  • Chemistry
  • Computers and Technology
  • Arts
  • World Languages
  • Spanish
  • French
  • German
  • Advanced Placement (AP)
  • SAT
  • Medicine
  • Law
  • Engineering
igomit [66]
3 years ago
14

People infected with the human immunodeficiency virus (HIV) have an increased risk of dying from secondary infections. Which of

the following best explains how HIV increases the danger of secondary infection?
Biology
1 answer:
nikdorinn [45]3 years ago
8 0

Answer:

HIV destroys helper T cells

Explanation:

The evading viruses destroys helper T cells or the CD4+ thus the body can no longer stop some infections. The secondary infections also called opportunistic infections are rampant with people who have AIDS. This is because helper T cells help fight against most infections in the body.

You might be interested in
Explain how the information from stimuli can become a memory or result in a behavior. WILL GIVE BRAINLIEST IF CORRECT!!!!!!!!!!!
Dmitry_Shevchenko [17]

Answer: look at the picture

Explanation: Hope this help :D

6 0
2 years ago
How does the development of the cell theory model how most theories are made?
lora16 [44]

By the late 1830s, botanist Matthias Schleiden and zoologist Theodor Schwann were studying tissues and proposed the unified cell theory. The unified cell theory states that: all living things are composed of one or more cells; the cell is the basic unit of life; and new cells arise from existing cells.

5 0
2 years ago
A travel time graph can be used to find the?
Vinvika [58]

A travel time graph can be used to find the distance of any earthquake epicenter.

A travel time graph is a graph of the time, usually P or S waves that is taken at various points as a function of distance from the epicenter of an earthquake seismic source. Information about the earth’s interior is obtained using the velocity of seismic waves through various substances.

8 0
3 years ago
Read 2 more answers
A normal breath takes in about 1.0 L of air. If air has an average molar mass of 28.8 g per 1 mol and has a density of 0.97 g/mL
Ann [662]

Taking into account the definition of density and Avogadro's Number, you take 2.0286×10²⁵ molecules of air.

<h3>What is density</h3>

Density is defined as the property that matter, whether solid, liquid or gas, has to compress into a given space.

In other words, density is a quantity that allows us to measure the amount of mass in a certain volume of a substance.

Then, the expression for the calculation of density is the quotient between the mass of a body and the volume it occupies:

density=\frac{mass}{volume}

<h3>What is Avogadro's Number</h3>

Avogadro's Number or Avogadro's Constant is called the number of particles that make up a substance (usually atoms or molecules) and that can be found in the amount of one mole of said substance. Its value is 6.023×10²³ particles per mole. Avogadro's number applies to any substance.

<h3>Amount of molecules of air</h3>

In this case, you know that:

  • Density= 0.97 \frac{g}{mL}
  • Volume= 1 L= 1000 mL

Replacing in the definition of density:

0.97 \frac{g}{mL}=\frac{mass}{1000 mL}

Solving:

mass= 0.97 \frac{g}{mL}  ×1000 mL

<u><em>mass= 970 g</em></u>

Air has an average molar mass of 28.8 g per 1 mol. Then 970 grams are contained in 33.68 moles.

Now, considering the definition of Avogadro's number you can apply the following rule of three: If 1 mole of air contains 6.023×10²³ molecules, 33.68 moles contains how many molecules?

amount of molecules = (33.68 moles× 6.023×10²³ molecules)÷ 1 mole

<u><em>amount of molecules= 2.0286×10²⁵ molecules</em></u>

Finally, you take 2.0286×10²⁵ molecules of air.

Learn more about

density:

brainly.com/question/952755

brainly.com/question/1462554

Avogadro's Number:

brainly.com/question/11907018

brainly.com/question/1445383

brainly.com/question/1528951

#SPJ11

4 0
1 year ago
Someone that’s willing to do this and help me out PLZ!!!!
Romashka [77]

Answer:

https://guides.lib.purdue.edu/c.php?g=352816&p=2377942#:~:text=figures%20and%20tables.-,Discussion,the%20reasons%20for%20the%20errors.

Explanation:

used this help with your lab write up

7 0
2 years ago
Other questions:
  • Someone help me please
    8·1 answer
  • What does Genetic drift do?
    7·1 answer
  • If there are all SINGLE bonds between _______ in the fatty acid chain, then it is said to be ____________.
    12·1 answer
  • PLEASE HELP ME ASAP!!!
    14·1 answer
  • Half of the polar bears in a small population die. This population may experience changes due to
    6·2 answers
  • HELP WORTHA FREE BRAINLY IF RIGHT
    13·1 answer
  • What kind of problems would we face if our body had no bone​
    7·1 answer
  • Que diferencia hay entre un metiorito y un asteroide?​
    13·1 answer
  • Only number 2,3,4????????
    7·1 answer
  • What is cytoplasm?<br>good evening ​
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!