Co-ordination and control - Jamb Biology Past Questions and Answers

Question 16:

• JAMB 1980

The following are connected with the movement of a reflex action (1) Central nervous (2) Muscles (3) Skin (4) Sensory nerve (5) Motor nerve. Which of the following sequences indicates a correct path?

A. 1-2-3-4-5
B. 2-1-4-5-3
C. 3-4-1-2-5
D. 4-1-5-2-3
E. 3-4-1-5-2

Question 17:

• JAMB 1980

Biconcave lenses are used in the correction of an eye defect called?

A. Myopia
B. Colour blindnes
C. Old age
D. Hypermetropia
E. Weakening of ciliary muscles

Question 18:

• JAMB 1981

Which of the following is the dental formula of man?

A. I(2/2) c(0/1) pm(2/2) m(3/3)
B. I(2/2) c(1/1) pm(2/0) m(3/3)
C. I(2/2) c(1/1) pm(2/2) m(3/3)
D. I(2/2) c(1/1) pm(3/3) m(2/2)
E. I(2/2) c(1/1) pm(2/3) m(3/3)

Question 19:

• JAMB 1981

The kind of teeth used for tearing food materials is the

A. Fang
B. Canine
C. Premolar
D. Carnassial
E. Incisor

Question 20:

• JAMB 1981

Accommodation of the human eye is best described as the

A. Ability to see distant objects
B. Movement of upper and lower eyelids
C. Focusing of near and distant objects
D. Changing of lens shape due to varying light intensities
E. Constant adjustment of the iris