Answer:
Nitrogen
Explanation:
It can change in the Atmosphere or on land:)!
Answer:
1. It means to have the charatersitcs of life which is the ability to reporoduce as a species, ability to adapty, use energy, homeostasis, have the ability to grow and develope, and use or give off some sort of energy.
2.
A. Living
B. Non-living
C. The fungi on athletes foot is living.
D. Non-living considered a virus (needs a host to be living)
If you used a full active virus, that defeats the point of a vaccine. You will trigger your immune response, but since you would just be injecting the virus, it will make you sick, and your body will be less effective at fighting the pathogens.
Viruses in vaccines are weakened, so they essentially will not "fight" back. They most importantly just contains the antigen markers so the body can trigger the immune response, quickly eradicate the pathogen, and build up the memory cells to that virus.
Injecting a virus that is not weak will just be the same thing as if you got the virus, you will likely get sick.
Answer:
Cartilage rings of trachea have protective role
Explanation:
Trachea is a tube, part of the respiratory system, which allows the passage of the air: from larynx to lungs (primary bronchi). It is enveloped with cartilage rings that prevent collapse of the trachea when there is no air. The cartilage "rings" are C-shaped, except one full ring-shaped - the cricoid cartilage which attaches trachea to the larynx.
The answer is homo sapiens sapiens because it has size of 1300 cc. so it's letter c:)
Hope I help.
