The two nuclei contained in the germinating pollen grain are
egg and palisade
generative and sperm
generative and tube
spongy and tube
tube and cellular
Correct answer is C
No explanation has been provided for this answer.
Meiosis involves all the following EXCEPT
exchange of genes
production of cells with diploid number of chromosomes
production of cells with haploid number of chromosomes
production of two daughter cells
two nuclear divisions
Correct answer is B
No explanation has been provided for this answer.
The structure that separates the thoracic from abdominal cavity is
diaphragm
intercostal muscle
rib
sternum
thoraxic vertebrae
Correct answer is A
The diaphragm is a dome-shaped structure of muscle and fibrous tissue that separates the thoracic cavity from the abdomen.
The main constituents of glomerular filterate are
blood and water
blood and urea
glucose and water
salt and blood
water and urea
Correct answer is C
No explanation has been provided for this answer.
Which of these is an example of physiological variation?
Blood group
Eye colour
Fingerprint
Height
Weight
Correct answer is A
No explanation has been provided for this answer.