Question 131:

• JAMB 1979

In which of the following tissue do the cells have the ability to divide?

A. Meristem
B. Sclerenchyma
C. Phloem
D. Collenchyma
E. Pith

Question 132:

• JAMB 1979

Which one of the following is not an excretory product?

A. Urine
B. Sweat
C. Faeces
D. Salts
E. Carbon-dioxide

Question 133:

• JAMB 1979

Bacteria inhabiting legume root nodules and which add atmospheric nitrogen to the soil are referred to as

A. Denitrifying bacteria
B. Nitrifying bacteria
C. Nitrogen fixing bacteria
D. Nitrogen freeing bacteria
E. Nitrogen putrefying bacteria

Question 134:

• JAMB 1979

One of the following statement is not true of viruses

A. They are micro-organisms
B. They are smaller than bacteria
C. They can be seen with an ordinary light microscope
D. They cause tobacco disease
E. They cause polio and smallpox

Question 135:

• JAMB 1979

If you cross breed a tall variety (Tt) of maize with a short variety (tt), the ratio of tall to short plants in the offspring will be

A. 2:1
B. 1:2
C. 1:1
D. 1:3
E. 3:1