What precaution should have been taken to prevent the sol...
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.
The association between a tapeworm and an infected mammal illustrates ...
In which part of a leguminous plant can you find bacteria like Azotobacter? ...
Which of the following diseases is NOT caused by a virus? ...
Which of the following water pollutants may contain organisms that cause dysentery? ...
The by-product of photosynthesis is ...
Tsetse-fly is a vector of a disease known as ...
In a plant of genotype Tt, what is the probability that a gamete will contain gene t? ...