All living organisms are constantly involved in a struggle for existence. This was proposed by

A. Morgan

B. Darwin

C. Lamarck

D. Wallace

Adaptive radiation is illustrated in

A. modified insect mouthparts

B. dentition in mammals

C. wings in birds and bats

D. appendages in insects

I. Growth is mainly apical ii. Growth is specific with definite shape iii. Growth is throughout life. Which of the above correctly describes the growth pattern in plants?

A. i, ii and iii only

B. ii and iii only

C. i and ii only

D. i and iii only

Use the diagram to answer this question. The part labelled II is the

A. nucleus

B. eyespot

C. basal granule

D. contractile vacuole

Use the diagram above to answer this question. The part responsible for photosynthesis is labelled

A. III

B. IV

C. I

D. II

Use the diagram above to answer this question. The young proglottid is represented by

A. III

B. IV

C. I

D. II

In the diagram, the organs for attachments to the lining of the host's intestine are labelled

A. ii and iii

B. iii and iv

C. i and ii

D. i and iii

In the diagram, the part labelled I is the

A. xylem

B. phleom

C. root hairs

D. cortex

The diagram is the transverse section of a

A. monocotyledonous stem

B. dicotyledonous stem

C. monocotyledonous root

D. dicotyledonous root