Exercise 2

Question 31 :

One day you wake with a sore throat and a runny nose. Your doctor takes a swab from your throat, sends it to a lab, and telephones you the next day to say that antibiotic will not help you get better. Which of the following is the most likely reason for the doctor's statement?


A). Having waited a day, it is too late to take an antibiotic
B). You need an antiseptic, not an antibiotic
C). You need to be vaccinated instead of taking an antibiotic
D). You are infected by a virus
Answer : Option D

Question 32 :

Plants that grow under average temperature and moisture are called


A). halophytes
B). hydrophytes
C). mesophytes
D). xerophytes
Answer : Option C

Question 33 :

Oxyreductases, transferases, hydrolases, lyases, isomerases and ligases are all classes of


A). hormones
B). enzymes
C). proteins
D). vitamins
Answer : Option B

Question 34 :

Mutation is


A). a factor responsible for plant growth
B). a change which affects the offspring of F2 generation only
C). a change that is inherited
D). a change which affects the parents
Answer : Option C

Question 35 :

Pollination by wind is called


A). anemophily
B). hydrophily
C). zoophily
D). entomophily
Answer : Option A