1)

BACTERIUM : MEDIUM ::


A) meadow : grass

B) snake : egg

C) parasite : host

D) predator: den

Answer:

Option B

Explanation:

(DEFINING CHARACTERISTIC) A connoisseur (meaning a person of informed and discriminating taste) is known for his taste; an altruist (meaning a person with unselfish concern for the welfare of others) is known for his selflessness. (B)