- Explain why certain bacteria and other pathogens become resistant to drugs after sometime.(Solved)
Explain why certain bacteria and other pathogens become resistant to drugs after sometime.
Date posted: May 29, 2019. Answers (1)
- Complete the table below which shows some parasites and the disease they cause.(Solved)
Complete the table below which shows some parasites and the disease they cause.
Date posted: May 29, 2019. Answers (1)
- Name the disease caused by the schistosoma.(Solved)
Name the disease caused by the schistosoma.
Date posted: May 29, 2019. Answers (1)
- State four adaptive features that make schistosoma a successful endoparasite.(Solved)
State four adaptive features that make schistosoma a successful endoparasite.
Date posted: May 29, 2019. Answers (1)
- State two functions of muscles found in the reproductive system in females.(Solved)
State two functions of muscles found in the reproductive system in females.
Date posted: May 29, 2019. Answers (1)
- Below is a simplified diagram of a flower.
i) Suggest its agent of pollination.
ii) Name the type of ovary shown above.
iii) Explain one observable...(Solved)
Below is a simplified diagram of a flower.
i) Suggest its agent of pollination.
ii) Name the type of ovary shown above.
iii) Explain one observable mechanism that will hinder self pollination and fertilization in the above flower.
Date posted: May 29, 2019. Answers (1)
- The diagram below represents part of a mammalian respiratory system.
a) Name the structure.
b) State two observable ways in which the structure is suited to...(Solved)
The diagram below represents part of a mammalian respiratory system.
a) Name the structure.
b) State two observable ways in which the structure is suited to its function.
Date posted: May 29, 2019. Answers (1)
- Explain why the rate of transpiration is reduced when humidity is high.(Solved)
Explain why the rate of transpiration is reduced when humidity is high.
Date posted: May 29, 2019. Answers (1)
- Name the three processes that takes place in the liver to bring about difference in composition of blood in hepatic portal vein and hepatic vein.(Solved)
Name the three processes that takes place in the liver to bring about difference in composition of blood in hepatic portal vein and hepatic vein.
Date posted: May 29, 2019. Answers (1)
- A horse has 64 chromosomes in its somatic cells while a donkey had 62. A mule is produced when a horse mates with a donkey.
However...(Solved)
A horse has 64 chromosomes in its somatic cells while a donkey had 62. A mule is produced when a horse mates with a donkey.
However a mule is sterile.Work out the number of chromosomes in a mule. Show your working.
Date posted: May 29, 2019. Answers (1)
- Why is the mule sterile?(Solved)
Why is the mule sterile?
Date posted: May 29, 2019. Answers (1)
- How is the dark stage of photosynthesis dependent to light stage.(Solved)
How is the dark stage of photosynthesis dependent to light stage.
Date posted: May 29, 2019. Answers (1)
- Two glucose molecules combine to form the disaccharide sucrose. The moleculer formula of glucose is C6H12O6 while a single sucrose molecule has the molecular formula...(Solved)
Two glucose molecules combine to form the disaccharide sucrose. The moleculer formula of glucose is C6H12O6 while a single sucrose molecule has the molecular formula C12H22O11. Account for the observation.
Date posted: May 29, 2019. Answers (1)
- If a solution of 0.9% salt solution is isotonic to a certain type of animal cell, explain what happens when the animal cell is placed...(Solved)
If a solution of 0.9% salt solution is isotonic to a certain type of animal cell, explain what happens when the animal cell is placed in a solution of 1.2% salt solution.
Date posted: May 29, 2019. Answers (1)
- The red blood cells lack mitochondria.
a) How is this advantages to red blood cells?
b) Apart from the reason stated above, give one other reason.(Solved)
The red blood cells lack mitochondria.
a) How is this advantages to red blood cells?
b) Apart from the reason stated above, give one other reason.
Date posted: May 29, 2019. Answers (1)
- What is the importance of a pooter to an ecologist?(Solved)
What is the importance of a pooter to an ecologist?
Date posted: May 29, 2019. Answers (1)
- Which structure in the ear detect:
i) Change in posture
ii) Sound waves.(Solved)
Which structure in the ear detect:
i) Change in posture
ii) Sound waves.
Date posted: May 29, 2019. Answers (1)
- Name the diseases of the teeth characterized by
i) Formation of cavities in the teeth.
ii) Gums become soft and flabby and bleeding of the gums...(Solved)
Name the diseases of the teeth characterized by
i) Formation of cavities in the teeth.
ii) Gums become soft and flabby and bleeding of the gums occur.
Date posted: May 29, 2019. Answers (1)
- Name the components of the enamel of teeth.(Solved)
Name the components of the enamel of teeth.
Date posted: May 29, 2019. Answers (1)
- The diameter of the field of view of a microscope was found to be 6mm. There were 8 cells across the diameter of the field...(Solved)
The diameter of the field of view of a microscope was found to be 6mm. There were 8 cells across the diameter of the field of
view.Calculate the size of one cell in micrometer.
Date posted: May 29, 2019. Answers (1)