I think it's because of SI units. also most of the world uses the metric system
Answer:
Risk factors for infectious diseases:
- Having a weak or compromised immune system
- Taking medications such as steroids or immuno-suppressants
- Having HIV or AIDS
- Not being vaccinated against an infectious disease
- Having cancer or a disorder that weakens the immune system
- Being malnourished
Explanation:
Apart from exposure to germs, certain other factors increase the risk of contracting an infectious disease.
Compromised or Suppressed Immune system:
- A compromised or suppressed immune system means that your immune system cannot effectively fight against pathogens.
- The immune system can either be weak naturally, due to malnourishment, undernourishment or be compromised by certain disorders or medication.
- Immunosuppressants are drugs that suppress or inactivate the immune system. These are prescribed to patients with auto-immune disorders (a disorder in which the body's own immune system starts attacking the body's own cells and organs).
HIV/AIDS
- Since HIV attacks an important component, the T-helper cells of the immune system, HIV positive or AIDS individuals have a weak immune system that lowers their ability to fight diseases.
Not Vaccinated:
Vaccination increases a body's capability to fight deadly infections. Un-vaccinated individuals are at a higher risk of contacting diseases.
Answer:
The options are unclear but the answer is 8^2π square feet or 64π sqfeet
Explanation:
Area of a circle is denoted by: πr^2 where r is the radius of the circle.
In this question, the diameter was given. The diameter of a circle is twice the radius. Therefore, in order to get the radius, we divide the diameter by 2 i.e. r = d/2
= 16/2 = 8 feet.
Thus, the radius = 8 feet.
Hence, Area of a circle = πr^2
= π × 8^2
= 64π or 8^2π sqfeet.
Optical nervous system pathway information travel from the eye
I think it's A.) RNA is typically a double-stranded molecule, whereas DNA is always single stranded.