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Alex73 [517]
2 years ago
8

Examine how the circulatory and respiratory system work together to move oxygen through the body.

Biology
1 answer:
Ksju [112]2 years ago
8 0

Answer: The respiratory system works directly with the circulatory system to provide oxygen to the body. Oxygen taken in from the respiratory system moves into blood vessels that then circulate oxygen-rich blood to tissues and cells.

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Info: I ALMOST HAVE 200 QUESTIONS ANSWERED!
olga_2 [115]

Answer:

Natural selection, mutation, and genetic drift are random events.

Explanation:

A mechanism of evolution in which the frequencies of alleles of a population change with generations because of sampling error is known as genetic drift. It takes place in all the populations of non-infinite size, however, its influences are strongest in small populations.  

Hope this helps :)

7 0
3 years ago
Read 2 more answers
Can someone help me thank you for your time
kkurt [141]
The independent variable is the one that can be changed
I think the correct answer would be water temperature because on the table, the water temperature is increasing by 10 each time so it is changing.

hope I'm right and hope I helped :)
7 0
3 years ago
what is the ultimate source of energy of almost any terrestial (land) food chsin or food web ? what process converts this energy
jasenka [17]
The sun is the ultimate source of energy and the process is Photosynthesis.
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3 years ago
How do you calculate the net force if two or more forces act in the same direction
Pie
All you would have to do is sum them up cause their going the same direction.
7 0
3 years ago
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Which stage of the human immunodeficiency virus (HIV) would a client with a CD4 T cell count of 325 cells/mm3 be classified
kirza4 [7]

Based on the CDC guidelines a person with a CD4+ cell count between 200-400 is regarded as being in <u>the second stage</u> of the HIV infection.

Acquired Immunodeficiency Syndrome

Acquired immunodeficiency syndrome (AIDS) is a condition caused by HIV (human immunodeficiency virus). AIDS is a chronic disorder and can become life-threatening for the infected person. The HIV viruses reproduce inside the host and while doing so they destroy the CD4+ immune cells which reduce the person's ability to fight against other diseases.

CD4+ cell count and AIDS

According to the CDC (U.S. Centers for Disease Control and Prevention), HIV infection is categorized into different stages based on the number of CD4+ cells.

  • Stage 1: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
  • Stage 2: - CD4+ cell count is more than 500 per microlitre. There are no symptoms or AIDS-related conditions.
  • Stage 3: - The CD4+ cell count falls below 200 and AIDS-related symptoms and conditions are present.  

Learn more about HIV infection here:

brainly.com/question/13662165

#SPJ4

7 0
2 years ago
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