WAEC Biology Past Questions & Answers - Page 140

In an experiment to study the rate of water loss in plants, leaves of a potted plant were treated as follows:
I. Upper surface covered with Vaseline
II. Lower surface covered with Vaseline
III. Both surfaces covered with Vaseline
IV. None of the leaf surfaces covered
Indicate in a descending order, the rate of water loss from the leaves

Which of the following definitions best describes excretion? The

Which of the following will cause wilting in plants?

Which of the following is a living organism?

The excretory product in protozoans is