Question

Immunity is the ability of the body (0) _____ (defend) itself from
'foreign bodies'. This means (1) _______ (reject) infections, clearing
up dust which gets in the lungs, and (2) _____ (kill) cancer cells.
Immunity (3) _____ (be) of two types. Innate immunity (4) ______
(protect) the host against infection, but has no 'memory', and so
gives no long-term immunity.
The second type is adaptive immunity, which does have a kind of
'memory'. It does give long-term protection against
specific pathogens.
All animals, plants and fungi have some innate
immunity. Vertebrates also have adaptive immunity.People can be (5) ______ (immune) from some diseases by (6)
_______ (have) a vaccination. By doing so, the body (7) ______
(learn) how the virus/bacteria harms the body, and will react more
quickly to fight the virus/bacteria when it comes in contact with
the virus/bacteria again. When your body (8) _______ (defend)
itself against the virus/bacteria it will trap the certain
virus/bacteria in a "net" so when the virus/bacteria comes back it
will be easier to trap those viruses/bacteria as well.

Answer 1

• defense

1. rejecting
2. killing
3. can be
4. protects
5. immunity
6. having
7. learnt
8. defense