Which of the following statements about phenylthiocarbamide (PTC) is not correct?
Some people BHG the taste of PTC to be bitter
Others find this substance to be tasteless
Ability to taste this chemical is inheritable
Ability to taste the chemical is hot inheritable
Correct answer is D
No explanation has been provided for this answer.
Which of the following substances is not recycled in an ecosystem?
Carbon
Energy
Water
Nitrogen
Correct answer is B
No explanation has been provided for this answer.
Vitamin C which is water soluble is
cabalamine
pyridoxine
ascorbic acid
riboflavine
Correct answer is C
No explanation has been provided for this answer.
Conservation may be promote by
encouraging tree planting
systematic deforestation
overgrazing
unabated bush timing
Correct answer is A
No explanation has been provided for this answer.
A very poor growth in plants and discolouration of leaves signifies the deficiency of
calcium
magnesium
potassium
manganese
Correct answer is C
No explanation has been provided for this answer.