Search SchoolNGR

Biology Past Questions and Answers

Jamb Biology Questions

Question 31:

In a positive phototropic response of a coleoptile, the region of greatest curvature is brought about by the

SchoolNGR Classroom

A Movement of auxins away from the region of curvature
B Even distribution of auxins in all parts of the coleoptile
C Inhibition of growth by auxins in the region f smaller curvature
D Concentration of auxins in the region of curvature
E Absence of auxins in the coleoptile

View Answer & Explanation

Question 32:

The tuber cassava is NOT a stem tuber because it

SchoolNGR Classroom

A Is distended with food reserve
B Has an aerial shoot portion
C Has other structure that could be called root
D Lacks axillary buds
E Has a bark over its stored food

View Answer & Explanation

Question 33:

The function of the ossicles (malleus, incus and stapes) in the mammalian ear is

SchoolNGR Classroom

A Transmission of vibrations
B Regulation of pressure
C Support of the inner ear
D Maintenance of balance during motion
E Secretion of oil

View Answer & Explanation

Question 34:

Which of the following instruments is used for determining turbidity of water?

SchoolNGR Classroom

A Thermometer
B Secchi disc
C Rain guage
D Hydrometer
E Wind vane

View Answer & Explanation

Question 35:

Which of the following is NOT a characteristic of monocot plants?

SchoolNGR Classroom

A Occurrence of secondary thickening
B Parallel venation
C Scattered vascular bundles
D Floral parts arranged in threes
E Perianth is usually insignificant

View Answer & Explanation

Stay Updated

Follow us on:

Subjects