Question

20. Explain the following terms in brief :
(a) Immunity (6) Antibodies (c) Vaccination.​

Answer 1

a) Immunity refers to the body's ability to prevent the invasion of pathogens. Pathogens are foreign disease-causing substances, such as bacteria and viruses, and people are exposed to them every day.

b) Antibodies, also known as immunoglobulins, are Y-shaped proteins that are produced by the immune system to help stop intruders from harming the body. When an intruder enters the body, the immune system springs into action. These invaders, which are called antigens, can be viruses, bacteria, or other chemicals. When an antigen is found in the body, the immune system will create antibodies to mark the antigen for the body to destroy.

c) Vaccination is the administration of a vaccine to help the immune system develop protection from a disease. Vaccines contain a microorganism or virus in a weakened, live or killed state, or proteins or toxins from the organism

Answer 2

Answer:

what is nucleoplasm ?

Explanation:

the substance of a cell nucleus, especially that not forming part of a nucleolus.