Get premium membership and access questions with answers, video lessons as well as revision papers.
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
- What is the meaning of isotonic solution?(Solved)
What is the meaning of isotonic solution?
Date posted: August 6, 2018. Answers (1)
- 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)
- Why do herbivores have elaborate caecum?(Solved)
Why do herbivores have elaborate caecum?
Date posted: August 4, 2018. Answers (1)
- Significance of the vertically elongated shape of a plant cell
(Solved)
Significance of the vertically elongated shape of a plant cell
Date posted: August 1, 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)
- What are Nutritional benefits of goat milk?(Solved)
Here your suppose to list health benefit gained from goat's milk.
Date posted: July 7, 2018. Answers (1)
- (a) What are cell movements? (b) What causes these movements?(Solved)
(a) What are cell movements?
(b) What causes these movements?
Date posted: July 6, 2018. Answers (1)
- What is the role of the rough endoplasmic reticulum and the Golgi apparatus in the production and release of proteins?(Solved)
What is the role of the rough endoplasmic reticulum and the Golgi apparatus in the production and release of proteins?
Date posted: July 6, 2018. Answers (1)
- Which cell organelle destroys worn out cells?(Solved)
Which cell organelle destroys worn out cells?
Date posted: June 27, 2018. Answers (1)
- Briefly describe some of the characteristics of viruses(Solved)
Briefly describe some of the characteristics of viruses.
Date posted: June 26, 2018. Answers (1)
- What happens to aquatic environments due to eutrophication?(Solved)
What happens to aquatic environments due to eutrophication?
Date posted: June 23, 2018. Answers (1)
- What happens when to the stomata when the level of co2 drops in the cytoplasm?(Solved)
What happens when to the stomata when the level of co2 drops in the cytoplasm?
Date posted: June 22, 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)
- What are the characteristics of genetics?(Solved)
What are the characteristics of genetics?
Date posted: June 18, 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)
- How can you define Biochemistry?(Solved)
How can you define Biochemistry?
Date posted: June 7, 2018. Answers (1)
- Describe the process of digestion of proteins.(Solved)
Describe the process of digestion of proteins.
Date posted: June 5, 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)