The diagram below 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.
The death of the plant was likely caused by
excess supply of nutrients to the plant
inadequate supply of water to the plant
algal growth in the solution that used up the nutrients
inability of the plant to make food due to lack of sunlight
Correct answer is C
No explanation has been provided for this answer.
The diagram below 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?
use a non-green plant for the experiment
aerate the solution daily
cover the culture vessel with opaque paper
keep cotton wool around the seedling to make it dry
Correct answer is C
No explanation has been provided for this answer.
An enzyme reaction may begin to decline when
the optimum temperature is attained
the ph of the medium is altered
there is an increase in substrate concentration
the atmospheric pressure is altered
Correct answer is B
No explanation has been provided for this answer.
Which of the following organisms does not undergo incomplete metamorphosis?
locust
grasshopper
butterfly
cockroach
Correct answer is C
No explanation has been provided for this answer.
How many gametes are produced in the pollen grain of a flowering plant before fertilization?
one
two
three
four
Correct answer is B
No explanation has been provided for this answer.
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