The image of an object placed at the center of the curvature of a concave mirror is
Inverted and magnified
at the principal focus
real and diminshed
Erect and virtual
at the center of the curvature
Correct answer is E
No explanation has been provided for this answer.
At which of the following stages of mitosis do the two daughter chromosomes separate completely?
Early prophase
Telophase
Anaphase
Late prophase
metaphase
Correct answer is C
No explanation has been provided for this answer.
Which of the following statements is not correct of respiration?
Gaseous exchange occurs by diffusion
Oxygen combines with haemoglobin at the respiratory surface
Carbondioxide produced in the tissues is removed via osmosis
There are no special organs for respiration in plants
In higher animals, respiratory gases are transported in solution
Correct answer is C
No explanation has been provided for this answer.
At the end of mitosis the number of cells produced from a parent cell is
four
six
eight
three
two
Correct answer is E
No explanation has been provided for this answer.
Which of the following structures differentiates an animal cell from a plant cell?
Ribosomes
Cell membrane
Chloroplast
Mitochondrion
Lysosome
Correct answer is C
No explanation has been provided for this answer.