Get premium membership and access questions with answers, video lessons as well as revision papers.
(a) Regulates amount of light passing through the condenser (to illuminate the specimen) ;
(b) Contracts and relaxes increasing and decreasing the volume of thoracic cavity respectively
lydiajane74 answered the question on November 15, 2017 at 23:40
- Give the functions of the following organelles. (i) Centrioles (ii) Nucleolus(Solved)
Give the functions of the following organelles.
i) Centrioles
ii) Nucleolus
Date posted: November 15, 2017. Answers (1)
- Why is it necessary to use a sharp razor blade while preparing sections to be viewed under a light microscope? (Solved)
Why is it necessary to use a sharp razor blade while preparing sections to be viewed under a light microscope?
Date posted: November 15, 2017. Answers (1)
- Other than anchorage, state two other functions of rhizoids of mosses. (Solved)
Other than anchorage, state two other functions of rhizoids of mosses.
Date posted: November 15, 2017. Answers (1)
- Define the following terms:(a) Cytology (b) Microbiology(Solved)
Define the following terms:
a) Cytology
b) Microbiology
Date posted: November 15, 2017. Answers (1)
- Describe how saturation deficit affect the rate of transpiration(Solved)
Describe how saturation deficit affect the rate of transpiration
Date posted: November 15, 2017. Answers (1)
- Describe what happens when sperm head hit the egg in human beings.(Solved)
Describe what happens when sperm head hit the egg in human beings.
Date posted: November 15, 2017. Answers (1)
- State the role played by jelly like substances surrounding egg laid by frogs.(Solved)
State the role played by jelly like substances surrounding egg laid by frogs
Date posted: November 15, 2017. Answers (1)
- (a) Ascaris lumbroides is an endo-parasite living in the ileum of human beings, while Tagetes minutes is a notorious weed in our farms. Identify the generic...(Solved)
(a) Ascaris lumbroides is an endo-parasite living in the ileum of human beings, while Tagetes minutes is a notorious weed in our farms. Identify the generic parts of the organisms mentioned.(b) Under which circumstances are two organisms considered to belong to same species.
Date posted: November 15, 2017. Answers (1)
- The lungs and ileum are adapted for absorption. State three features they have in common which facilitate absorption.(Solved)
The lungs and ileum are adapted for absorption. State three features they have in common which facilitate absorption.
Date posted: November 15, 2017. Answers (1)
- Two equal strips A and B were from a potato whose cell was 30% of sugar. The strip A was placed in a solution of...(Solved)
Two equal strips A and B were from a potato whose cell was 30% of sugar. The strip A was placed in a solution of 10% sugar concentration while strip B was placed in 50% sugar concentration. a) What change was expected in strips A and B?
Date posted: November 15, 2017. Answers (1)
- Explain why most athletes practice in highland regions?(Solved)
Explain why most athletes practice in highland regions?
Date posted: November 15, 2017. Answers (1)
- Name the organelle in which energy production takes place.(Solved)
Name the organelle in which energy production take place.
Date posted: November 15, 2017. Answers (1)
- What is excretion?(Solved)
What is excretion?
Date posted: November 15, 2017. Answers (1)
- State the reason why digestion of starch does not take place in the stomach.(Solved)
State the reason why digestion of starch does not take place in the stomach.
Date posted: November 15, 2017. Answers (1)
- Describe the sequences of events that occur in the eye for one to be able to see clearly if one moves from a dark room...(Solved)
Describe the sequences of events that occur in the eye for one to be able to see clearly if one moves from a dark room to a bright light.
Date posted: November 14, 2017. Answers (1)
- Explain why an athlete after winning 100 meters race breath move quickly and deeply.(Solved)
Explain why an athlete after winning 100 metres race breath move quickly and deeply.
Date posted: November 14, 2017. Answers (1)
- Explain why amoeba does not have a specialized structure for gaseous exchange.(Solved)
Explain why amoeba does not have a specialized structure for gaseous exchange.
Date posted: November 14, 2017. Answers (1)
- Why is that a father can only transmit haemophilia to his daughter but not to his son?(Solved)
Why is that a father can only transmit haemophilia to his daughter but not to his son?
Date posted: November 14, 2017. Answers (1)
- Name the branch of biology that deals with the study of cells in the body of organisms.(Solved)
Name the branch of biology that deals with the study of cells in the body of organisms.
Date posted: November 14, 2017. Answers (1)
- What is symbiosis?(Solved)
What is symbiosis?
Date posted: November 13, 2017. Answers (1)