Jamb Biology 1999 Past Questions and Answers

Question 26:

• JAMB 1999

Bacteria multiply rapidly by means of

A. Budding
B. Fragmentation
C. Binary fission
D. Spore formation

Question 27:

• JAMB 1999

The correct sequence for the perception of smell in mammals is

A. Chemicals → olfactory nerve endings → brain
B. Dissolved chemicals → nasal sensory cell → brain
C. Chemicals → mucus membrane → sensory cells→ brain
D. Dissolved chemicals → sensory cells → olfactory nerve → brain

Question 28:

• JAMB 1999

The part labelled III is for

A. Protection
B. Insulation
C. Lubrication
D. Growth

Question 29:

• JAMB 1999

The structure labelled II is known as

A. Sweat gland
B. Lymph vessel
C. Blood vessel
D. Nerve ending

Question 30:

• JAMB 1999

In mammals, the organ which performs digestive and endocrine functions is the

A. Liver
B. Pancreas
C. Gastric gland
D. Salivary gland