Which of the following statements is NOT true of mammalian erythrocytes?
They have haemoglobin
they appear yellow when looked at singly
They are disc shaped
The cell are more numerous than leucocytes
They have nuclei at maturity
Correct answer is E
No explanation has been provided for this answer.
which of the following disease is rarely spread by a housefly?
Yellow fever
Dysentry
Typhoid fever
Poliomyelitis
Correct answer is A
No explanation has been provided for this answer.
Which of the following elements are necessary for the formation of chlorophyll in a plant?
magnesium and iron
Calcium and potassium
Calcium and sulphur
Potasium and sulphur
Phosphorus and potassium
Correct answer is A
No explanation has been provided for this answer.
If an organic compound has its hydrogen: oxygen ratio as 2:1, it is likely to be
a protein
a cabohydrate
a fat
a fatty acid and glycerol
an amino acid
Correct answer is B
No explanation has been provided for this answer.
Which of the following is not associated with excretion in mammals
Glomerulus
Urea
Faeces
Carbon Dioxide
Bowman's capsule
Correct answer is C
No explanation has been provided for this answer.