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
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.

You might be interested in
Breaking a bond in a molecule by adding heat results in a
stepan [7]
It results in change of the phase temperature and heat
4 0
3 years ago
Explain two ways your life was affected by bacteria today
Marta_Voda [28]

I have a runny nose and things are dirty.

5 0
3 years ago
PLEASE help me ahahaha
Korolek [52]
The answer is B mutualism
8 0
3 years ago
Read 2 more answers
If the heart becomes damaged or weakened, how will this affect the body’s systems?
jek_recluse [69]
Think of blood as a gas/ fuel for the car ( your body). If there is no fuel, there's no movement (dead) so when the fuel tank is damaged the car won't function properly. 
 So if the heart becomes damaged, or weakened it would start making blood clots and damage the organs that need blood to function properly. The circulatory system wouldn't function properly and because other organs depend on the circulatory system it would cause a chain reaction, affecting other body systems. <span />
3 0
3 years ago
Read 2 more answers
Where in the body would you find low oxygen levels causing vasoconstriction and high levels causing vasodilation?
stealth61 [152]
The correct answer is the lungs. Usually, in the systemic organs such as the liver, kidneys, and the heart; hypoxia or low oxygen levels cause the blood vessels supplying them to vasodilate to increase flow of blood and prevent ischemia. Adequate oxygenation of systemic organs cause the blood supply to vasoconstrict to prevent pooling of oxygenated blood and shunt it to other organs that need the oxygen more.

However, in the lungs, the opposite is true because in the setting of hypoxia, the blood vessels of the lungs vasoconstrict as to shunt the blood to other parts of the lungs with adequate oxygenation for the blood to be adequately oxygenated. If there is adequate oxygen in the lungs, then blood vessels vasodilate to efficiently get the oxygen from the lungs. 
7 0
3 years ago
Read 2 more answers
Other questions:
  • A microscope has different magnification powers. Using the If . . . , then . . . format, write a hypothesis that answers the lab
    14·2 answers
  • Why do producers make up more biomass than primary consumers
    12·1 answer
  • Science has shown how information can only be gathered by the known laws of physics and chemisty.
    14·1 answer
  • Carolina Bays along with cypress and gum ponds are important inland wetlands that provide habitat for a wide range of plants and
    11·2 answers
  • A heat source could be considered a source of pollution
    12·2 answers
  • What does it mean when scientists say that living organisms share a universal genetic code?
    5·1 answer
  • Where do these reactants enter the leaf? (be very specific)
    15·1 answer
  • A Helium atom has 2 protons in the center of its nucleus. Therefore its atomic number is 2. Its mass is
    12·2 answers
  • What is Stromatolites?
    13·1 answer
  • HELP ME ASAP<br> PLEASE HELP
    10·1 answer
Add answer
Login
Not registered? Fast signup
Signup
Login Signup
Ask question!