Search SchoolNGR

Biology Past Questions and Answers

Classroom

Biology Questions

Question 71:

A potometer with a leafy shoot weighed 18.9g initially and weighed 17.9g after one hour. From this it follow that

SchoolNGR Classroom

A The shoot absorbed 1g of water per hour
B 1g of water per hour evaporates from the potometer
C The shoot lost 1g of water per hour
D The potometer water receded at the rate of 1g per hour
E The shoot was respiring and lost weight at rate of 1g per hour

View Answer & Explanation

Question 72:

At fertilization

SchoolNGR Classroom

A One chromosome from the male joins another from the female
B One gene from the male combines with another from the female
C The male nucleus fuses with the female nucleus
D One set of chromosome combines with another set from the female
E One cell from the male fuses with another from the female

View Answer & Explanation

Question 73:

The neck region of the tape worm, (taenia) is responsible for the

SchoolNGR Classroom

A Production of egg
B Storage of egg
C Formation of new segment
D Development of the suckers
E Fragmentaion of the body segment

View Answer & Explanation

Question 74:

Which of these is not true of the insect? The possession of

SchoolNGR Classroom

A Two pairs of antennae
B Jointed appendages
C Exoskeleton
D Three pairs of legs
E Segmented body

View Answer & Explanation

Question 75:

Rhizopus (or mucor)obtain its food from dead organic matter extracellularly. It is said to be

SchoolNGR Classroom

A A facultative parasite
B Saprophyte
C An obligate parasite
D A commensal
E An autotroph

View Answer & Explanation

Stay Updated

Follow us on:

Subjects