Answer:
Covering mouth while sneezing
Explanation:
It prevents germs going airborne and spreading to another person or surface.
The other answers are ways to get better from an illness or are just inefficient
1) I would choose white blood cells since their main job is to fight infection (Something that does not belong as a part of the body) But since their is several types of white blood cells the ones too look out for would be the Neutrophils since they kill bacteria by ingesting them.
2) It would be a Neutrophils blood cell. They are 12-14 µm diameter, and so look bigger than the surrounding red blood cells. There is a single nucleus, which is multilobed, and can have between 2 and 5 lobes.
3)You would also have to watch out for: Granulocytes – cells which contain granules which contain chemicals that are used to kill bacteria and viruses Lymphocytes- cells which attack most of the bacterial and viral infections in our bodiesMonocytes - cells which become macrophages, large cells that engulf harmful particles in our bodies.
It increases the metabolic rate.
Answer:
The number of needed subjects to estimate the mean HDL= 31
Explanation:
Given that:
. standard deviation, s= 11.6
. Margin of error, ME = 2
s= 11.6
ME = 2
. The 90% margin of error is defined as:
ME = Z₀,₉÷₂ X σ÷√η
coeficient = (0,90/2)
2= 1.645 x 11.6/√η
√η= (1.645 x 11.6)÷ 2
η= √9.541
η= 30.888
η≈31
