The immune system, when coming in contact with a new foreign entity, (Introduced by the vaccine), will first digest the foreign entity with white blood cells to determine its molecular makeup, the white blood cell will then proceed to construct specific antibodies t that will cling to the antigens of the invader, this will help the body know what is foreign and what is friendly! now, after you have fought an infection, your body will set aside certain cells called memory cells, these cells can live for weeks to years within the Lymphatic system as dormant cells, however, if the invader were to show itself again, the antigen presence from the invader would trigger the dormant memory cell to become active and mass produce the antibodies specific for that strain of infection. therefore preventing the show of symptoms due to the early warning system now in place.
Hope this helps! :D
As the Earth warms, scientists worry that some of the carbon in permafrost could escape to the atmosphere as carbon dioxide or methane. Increasing the amount of these gases in the atmosphere could make Earth's climate & more
Explanation:yw
Answer:
71°
Explanation:
To obtain the angle of impact :
The length of blood stain = hypotenus
The width = opposite
Hence,
Hypotenus = 7.2 mm ; Opposite = 6.8mm
Angle of impact, θ = sin^-1(opposite /hypotenus)
θ = sin^-1(6.8/7.2)
θ = 70.8°
θ = 71°
B is your answer. God Bless hope this helps
