The diagram above is an illustration of a type of eye defect in humans. Study it and answer this question.
The eye defect can be corrected by the use of?
How many gametes are produced in the pollen grain of a flowering plant before fertilization?
Which of the following organisms does not undergo incomplete metamorphosis?
An enzyme reaction may begin to decline when?
The diagram above is an illustration of the growth of a plant in a water culture. After a few days, the solution turned green and the plant died. Use this to answer this question.
What precaution should have been taken to prevent the solution from turning green?
