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zhenek [66]
3 years ago
7

The complement system is:

Biology
1 answer:
bonufazy [111]3 years ago
3 0

Answer:

a. a set of proteins involved in innate but not acquired immunity.

Explanation:

The complement system are a set of proteins or protein fragments that play a major role in the innate immune system. The complement system is involved in the defense of the body from foreign pathogen through specific plasma proteins that participate in leukocyte activation, chemotaxis and opsonization. In other words, they increase the ability of phagocytes and antibodies to mop up damaged cells and foreign microorganism, activate inflammation process.

Some of these proteins include complement component 3 (C3), complement component 9 (C9) and  C1Q complex.

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Student provides an explanation for carbon dioxide fluctuations for different seasons of the year. ( 2 points)
jeka57 [31]

Carbon dioxide fluctuations occur for different seasons of the year due to the presence of plants in an area.

<h3>Why carbon dioxide fluctuations occur for different seasons of the year?</h3>

The carbon dioxide levels in the atmosphere moves up and down every year when plants use carbondioxide gas through the process of photosynthesis and respiration. Plants take up the carbondioxide gas in the spring and summer season and release it in fall and winter season. In this modern world, the level of carbon cycle is increasing because more carbon dioxide is emitted from burning fossil fuels and other human activities.

So we can conclude that carbon dioxide fluctuations occur for different seasons of the year due to the presence of plants in an area.

Learn more about season here: brainly.com/question/15734021

#SPJ1

3 0
1 year ago
Why do organisms have to be “organized” to live?
TEA [102]

Answer:

because they have to be seperated

Explanation:

7 0
3 years ago
Can someone please help me
Usimov [2.4K]

Answer:

1A - Respiratory = trachea, lungs... however both arteries and veins move oxygen around the body, and are therefore valid answers

1B - Skeletal = bones

1C - Muscular = muscles

1D - Digestive = stomach, large/small intestine

1E - Circulatory = heart, veins and arteries

2. Cellular respiration is the conversion of sugar into energy the cell uses to function via various chemical reactions. Digestion is an example of this. Stomach acid breaks down food into sugars that cells break down further into energy to keep you alive

3. Bones contain bone marrow deep inside of them which is responsible for the creation of red blood cells. Your lungs can move air all they want but would be useless without red blood cells to take the oxygen to cells and take the CO2 away from them.

5 0
3 years ago
Why would this procedure fail to produce a projaryotic cell
slamgirl [31]

Answer:

Explanation:because of trying to produce a damage cell

8 0
2 years ago
You are a nephrologist. a 72 year old female patient presents with advanced kidney failure and you recommend the standard treatm
kirza4 [7]
<span>I suggest dialysis to the patient. Dialysis is a medicine. People who failed with the kidneys may have difficulty eliminating waste and unwanted water from the blood. Dialysis is an artificial way of carrying out this process. Dialysis substitutes the natural work of the kidneys.</span>
6 0
3 years ago
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