Answer:
Vaccination involves showing the immune system something which looks very similar to a particular virus or bacteria, which helps the immune system be stronger when it is fighting against the real infection.
Explanation: "it is what it is".
Answer:
Option C
Explanation:
Brent will opt to work with an individual who has the desired characteristics to meet the work requirement and could also go along with efficient team building. Thus, in case if both Ken and Darwin have similar characteristics, then Brent would prefer to work with both the person irrespective of their color. Physical characteristics will not impact Brent decision for choosing one amongst the two.
Hence, option C is correct
Answer:
Calcium is a silvery-white, soft metal that tarnishes rapidly in air and reacts with water. Calcium metal is used as a reducing agent in preparing other metals such as thorium and uranium. It is also used as an alloying agent for aluminium, beryllium, copper, lead and magnesium alloys. Calcium is essential to all living things, particularly for the growth of healthy teeth and bones. Calcium phosphate is the main component of bone. The average human contains about 1 kilogram of calcium.
Explanation:
