Question

Which of the following statements is the definition of an antigen?
A. An antigen is a saturated fat.
B. An antigen strengthens cell walls.
C. An antigen is used as energy for metabolism.
D. An antigens is a foreign substance.

Answer 1

so what do u think?

Answer 2

B?

Answer 3

in which branch of biology you read ANTIGEN?

Answer 4

i didnt

Answer 5

no it is not B?

Answer 6

ur standard?

Answer 7

in which standard do u read?

Answer 8

I dont understand your question. Standard???

Answer 9

in which grade do u read of school it may be 9th ,10th etc

Answer 10

reading level is 12th grade

Answer 11

An antigens is a foreign substance.

Answer 12

u may study immunology

Answer 13

The immune system is a system of biological structures and processes within an organism that protects against disease.

Answer 14

In immunology, an antigen is the substance that binds specifically to the respective antibody.