Exercise 2

Question 16 :

Organic Substances which, in very small amounts, control growth and development called

A). vitamins
B). hormones
C). enzymes
D). None of the above
Answer : Option B

Question 17 :

Our major foods, fibres, spices, fruits and beverage crops are

A). flowering plants
B). gymnosperms plants
C). pteridophytes
D). bryophytes
Answer : Option A

Question 18 :

Movements due to light are shown by

A). flowering plants
B). lower plants
C). all land plants
D). all the plants
Answer : Option A

Question 19 :

Outer covering of virus made up of protein is

A). capsid
B). coat
C). virion
D). viriod
Answer : Option A

Question 20 :

Radish is a

A). bulb
B). conn
C). modified root
D). tuber
Answer : Option C