Temperature in the tropic region is high compared to that in the arctic region which is low. People in the arctic area have a lot of fat in the body, hence they are short and plump. The fat in their bodies allows them to retain heat inside their bodies since fat is a heat insulator. This enables them to survive the cold conditions in the arctic region.Also, them being plump and short exposes a small surface area of their bodies and hence lose little heat from their bodies.
People in the tropics have less fat in their bodies and hence thin and tall. This enables them to lose excess heat from their bodies and also they expose a large surface area of their bodies to the atmosphere therefore allows them to lose a lot of heat to the surrounding environment.
Ladesha answered the question on April 18, 2018 at 18:39
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Describe two methods each for (i)improving crop yield (ii)Preserving and storing food.Explain the Principle involved in each of the methods described
(Solved)
Describe two methods each for
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Date posted:
April 13, 2018
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Answers (1)
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April 12, 2018
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April 12, 2018
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(Solved)
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Date posted:
April 12, 2018
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April 11, 2018
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April 11, 2018
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April 10, 2018
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(Solved)
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Date posted:
April 10, 2018
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(Solved)
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April 6, 2018
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April 5, 2018
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March 22, 2018
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March 22, 2018
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March 15, 2018
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(Solved)
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Date posted:
March 5, 2018
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Answers (1)
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(Solved)
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Date posted:
February 28, 2018
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(Solved)
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Date posted:
February 26, 2018
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(Solved)
(a) State three processes by which flowering plants excrete waste products and for each process name two waste products that are eliminated.
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Date posted:
February 23, 2018
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Answers (1)
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(a) Describe the photosynthetic theory of opening and closing of the stomata.
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(Solved)
(a) Describe the photosynthetic theory of opening and closing of the stomata.
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Date posted:
February 23, 2018
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Answers (1)
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Describe the uptake and movement of water from the soil to the leaves of a tall plant till transpiration
(Solved)
Describe the uptake and movement of water from the soil to the leaves of a tall plant till transpiration
Date posted:
February 23, 2018
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Answers (1)
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Name the organelle that:(a) Manufacture and transport lipids and steroids in a cell. (b)Contain enzymes that are capable of destroying old damaged cells. ...
(Solved)
Name the organelle that:-
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d) Form cilia and flagella in cells that have them.
Date posted:
February 19, 2018
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Answers (1)