When it is too hot;
1.The sweat gland in the skin release more sweat,which then evaporates removing heat energy from skin
2.The blood vessel leading to the capillaries become wider - dilate -allowing more blood to flow through the skin,and more heat to be lost.
When it becomes too cold;
1.The muscle contract rapidly - shivering. The contraction requires energy from respiration and some of it is released as heat.
2.Blood vessel leading to the blood capillaries become narrower,they constrict letting blood flow through the skin and conserving heat in the body.
Enockjakano answered the question on August 8, 2018 at 04:09
-
How is the fovea centralis adapted for its function in the human eye?
(Solved)
How is the fovea centralis adapted for its function in the human eye?
Date posted:
August 5, 2018
.
Answers (1)
-
Discuss the activities which take place in each of the antenatal visits as per the focused antenatal care schedule
(Solved)
Discuss the activities which take place in each of the antenatal visits as per the focused antenatal care schedule.
Date posted:
July 27, 2018
.
Answers (1)
-
Explain the process of digestion of carbohydrates, proteins and fats
(Solved)
Explain the process of digestion of carbohydrates, proteins and fats.
Date posted:
July 11, 2018
.
Answers (1)
-
Explain the functions of a mammalian skin
(Solved)
Explain the functions of a mammalian skin.
Date posted:
June 21, 2018
.
Answers (1)
-
What is the difference between gaseous exchange in plants and animals?
(Solved)
What is the difference between gaseous exchange in plants and animals?
Date posted:
June 20, 2018
.
Answers (1)
-
Explain how seeds and fruits are adapted to the various methods of dispersal
(Solved)
Explain how seeds and fruits are adapted to the various methods of dispersal.
Date posted:
June 11, 2018
.
Answers (1)
-
Describe life cycle of Wuchereria bancrofti in (i) insects (ii)man
(Solved)
Describe life cycle of Wuchereria bancrofti in (i) insects (ii)man
Date posted:
June 5, 2018
.
Answers (1)
-
Describe the adaptations of a fish gill to gaseous exchange.
(Solved)
Adaptations of a fish gill.
Date posted:
May 25, 2018
.
Answers (1)
-
Explain the Factors that affect the rate of photosynthesis
(Solved)
Explain the Factors that affect the rate of photosynthesis.
Date posted:
May 9, 2018
.
Answers (1)
-
Describe an experiment to Test for starch in a leaf.
(Solved)
Describe an experiment to Test for starch in a leaf.
Date posted:
May 9, 2018
.
Answers (1)
-
Discuss the Role of Osmosis in Organisms
(Solved)
Discuss the Role of Osmosis in Organisms
Date posted:
May 8, 2018
.
Answers (1)
-
Describe an experiment for the demonstration of Osmosis Using a Visking Tubing.
(Solved)
Describe an experiment for the demonstration of Osmosis Using a Visking Tubing.
Date posted:
May 8, 2018
.
Answers (1)
-
Describe the functions of parts of a light microscope.
(Solved)
Describe the functions of parts of a light microscope.
Date posted:
May 8, 2018
.
Answers (1)
-
Describe the mechanism of gaseous exchange in mammals
(Solved)
Describe the mechanism of gaseous exchange in mammals.
Date posted:
May 3, 2018
.
Answers (1)
-
Discuss the adaptations of the following plants to their various habitats (i) Xerophytes (ii) Mesophytes (iii)Halophytes (iv) Hydrophytes
(Solved)
Discuss the adaptations of the following plants to their various habitats.
i) Xerophytes
ii) Mesophytes
iii)Halophytes
iv) Hydrophytes
Date posted:
April 30, 2018
.
Answers (1)
-
Describe the evidences of organic evolution
(Solved)
Describe the evidences of organice evolution.
Date posted:
April 30, 2018
.
Answers (1)
-
How are leaves of mesophytes adapted to their functions?
(Solved)
How are leaves of mesophytes adapted to their functions?
Date posted:
April 28, 2018
.
Answers (1)
-
Why is it advisable to feed 100kg of grain to man instead of using it to fatten steers then supply beef to human population?
(Solved)
Why is it advisable to feed 100kg of grain to man instead of using it to fatten steers then supply beef to human population?
Date posted:
April 28, 2018
.
Answers (1)
-
What is the importance of saprophytic fungi and bacteria in an ecosystem?
(Solved)
What is the importance of saprophytic fungi and bacteria in an ecosystem?
Date posted:
April 28, 2018
.
Answers (1)
-
Describe how the belt transect can be used in estimating the population of a shrub in a grass land.
(Solved)
Describe how the belt transect can be used in estimating the population of a shrub in a grass land.
Date posted:
April 28, 2018
.
Answers (1)