Erector pilli muscles contract; hair stands upright trapping air; air being a bad conductor of heat prevents heat loss
sharon kalunda answered the question on May 28, 2019 at 06:49
- Name any two receptor cells on the skin of man(Solved)
Name any two receptor cells on the skin of man
Date posted: May 28, 2019. Answers (1)
- Name the structures in the following organisms that would insulate heat loss
(i) Birds
(ii) Mammals(Solved)
Name the structures in the following organisms that would insulate heat loss
(i) Birds
(ii) Mammals
Date posted: May 28, 2019. Answers (1)
- The question below represents a chemical equation that takes place in green plants under certain conditions
(a) Name substance X
(b) Other than the conditions stated...(Solved)
The question below represents a chemical equation that takes place in green plants under certain conditions
(a) Name substance X
(b) Other than the conditions stated in the equation, state two other conditions necessary for the reaction
(c) Name two types of cells in which this process occurs
(d) Name the process represented by the equation given above
(e) State the importance of the process named in 5(d) above
Date posted: May 28, 2019. Answers (1)
- The graph below show the rate of an enzyme controlled reaction against temperature (OC)
Explain the shape of the curve:
(i) Between A and B
(ii) At...(Solved)
The graph below show the rate of an enzyme controlled reaction against temperature (OC)
Explain the shape of the curve:
(i) Between A and B
(ii) At Point C
(iii) Between C and D
(iv) Other than temperature, state two factors that affect the above reaction
Date posted: May 28, 2019. Answers (1)
- What would happen if a person secreted less antidiuretic hormone into the blood circulation?(Solved)
What would happen if a person secreted less antidiuretic hormone into the blood circulation?
Date posted: May 28, 2019. Answers (1)
- State the hameostatic functions of the following hormone.
(i) Insulin
(ii) Glucagon(Solved)
State the hameostatic functions of the following hormone.
(i) Insulin
(ii) Glucagon
Date posted: May 28, 2019. Answers (1)
- State the inactive form of the enzyme trypsin.(Solved)
State the inactive form of the enzyme trypsin.
Date posted: May 28, 2019. Answers (1)
- Explain why trypsin is secreted in inactive form(Solved)
Explain why trypsin is secreted in inactive form
Date posted: May 28, 2019. Answers (1)
- Name the two hormones that prepares a person for emergency(Solved)
Name the two hormones that prepares a person for emergency
Date posted: May 28, 2019. Answers (1)
- Give a reason for the presence of white matter in the central nervous system(Solved)
Give a reason for the presence of white matter in the central nervous system
Date posted: May 28, 2019. Answers (1)
- State the components of peripheral nervous system(Solved)
State the components of peripheral nervous system
Date posted: May 28, 2019. Answers (1)
- Chloroplasts in a palisade cell move away from extreme light intensity. Name the type of response by the chloroplast.(Solved)
Chloroplasts in a palisade cell move away from extreme light intensity. Name the type of response by the chloroplast.
Date posted: May 28, 2019. Answers (1)
- Which plant growth hormone induces parthenocapy?(Solved)
Which plant growth hormone induces parthenocapy?
Date posted: May 28, 2019. Answers (1)
- State the role of the following hormones
(a) Prolactin
(b) Oxytocin(Solved)
State the role of the following hormones
(a) Prolactin
(b) Oxytocin
Date posted: May 28, 2019. Answers (1)
- A student in form 3 caught an organism which had the following characteristics.
(i) Body divided into two parts
(ii) Simple eyes
(iii) Eight legs
Classify the organism up...(Solved)
A student in form 3 caught an organism which had the following characteristics.
(i) Body divided into two parts
(ii) Simple eyes
(iii) Eight legs
Classify the organism up to the class level
Date posted: May 28, 2019. Answers (1)
- A process that occurs in plants is represented by the equation below.
(a) Name the process
(b) State the economic importance of the process named in...(Solved)
A process that occurs in plants is represented by the equation below.
(a) Name the process
(b) State the economic importance of the process named in (a) above
Date posted: May 28, 2019. Answers (1)
- Explain each of the following:
(a) A mature plant cell does not lose its shape even after losing water
(b) Xylem vessels do not collapse even when...(Solved)
Explain each of the following:
(a) A mature plant cell does not lose its shape even after losing water
(b) Xylem vessels do not collapse even when they are not conducting water
Date posted: May 28, 2019. Answers (1)
- (i)Identify the mode of feeding of the animal whose dental formula is shown below
(ii) Give reasons for your answer in (i) above(Solved)
(i)Identify the mode of feeding of the animal whose dental formula is shown below
(ii) Give reasons for your answer in (i) above
Date posted: May 28, 2019. Answers (1)
- The diagram below represents a cell as seen under an electron microscope.
a) Identify the parts labeled A and D.
b) State the function of the...(Solved)
The diagram below represents a cell as seen under an electron microscope.
a) Identify the parts labeled A and D.
b) State the function of the structures found on the part labeled D.
Date posted: May 28, 2019. Answers (1)
- An experiment was carried out to investigate transpiration and absorption of water in sunflower plants in their natural environment with adequate supply of water. The...(Solved)
An experiment was carried out to investigate transpiration and absorption of water in sunflower plants in their natural environment with adequate supply of water. The amount of water was determined in two hour intervals. The results are shown in the table below.
(a) Using the same axes, plot graphs to show transpiration and absorption of water in grammes against time of the day.
(b) At what time of the day was the amount of water the same for transpiration and absorption.
(c) Account for the shape of the graph of
(i) Transpiration
(ii) Absorption
(d) What would happen to transpiration and absorption of water if the experiment was continued till 0050 hours.
(e) Name two factors that may affect transpiration and absorption at any given time.
(f) Explain how the factors you named in (e) above affect transpiration.
Date posted: May 28, 2019. Answers (1)