Which of the following statements is NOT true of menstruation?
It occurs monthly
The discharge contains amniotic fluid
Its signifies no conception
It involves the lining of uterus
It may cause pains
Correct answer is B
No explanation has been provided for this answer.
conversion of nitrates to nitrogen
fixing nitrogen into plants
conversion of nitrates to nitrites
changing of ammonia to nitrities, then nitrates
nitrogen cycle
Correct answer is D
No explanation has been provided for this answer.
A surprising fact about sickle cell disease is that it
affects only black people
kills the patient
is hereditary
affects blood cells
weakens the patient
Correct answer is C
No explanation has been provided for this answer.
If Benedict's solution gives a positive result in a food test, the food contains
sugar
protein
oil
fat
cellulose
Correct answer is A
No explanation has been provided for this answer.
A person whose blood can be donated to all other people, must have the blood group
O
AB
B
A
none of the above
Correct answer is A
No explanation has been provided for this answer.