Contains disease – causing micro-organisms which may cause outbreak of water borne diseases; faecal material is broken down by saprophytes leading to depletion of dissolved oxygen thus suffocation of aquatic organisms; breakdown of matter releases nutrients which enrich the water resulting in eutrophication;
chrispohmomanyi answered the question on February 14, 2018 at 09:46
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Explain how Protogyny hinder self pollination in plants:
(Solved)
Explain how Protogyny hinder self pollination in plants:
Date posted:
February 14, 2018
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Answers (1)
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Differentiate between continuous and discontinuous variation.
(Solved)
Differentiate between continuous and discontinuous variation.
Date posted:
February 12, 2018
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Answers (1)
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Explain what happens to Red blood cells when its placed in hypertonic solution
(Solved)
Explain what happens to Red blood cells when its placed in hypertonic solution
Date posted:
February 12, 2018
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Answers (1)
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Explain what would result from blockage of bile duct
(Solved)
Explain what would result from blockage of bile duct
Date posted:
February 12, 2018
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Answers (1)
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Explain how the guard cells are adapted to their functions.
(Solved)
Explain how the guard cells are adapted to their functions.
Date posted:
February 12, 2018
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Answers (1)
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State two differences between daughter cells from mitosis and from meiosis
(Solved)
State two differences between daughter cells from mitosis and from meiosis
Date posted:
February 12, 2018
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Answers (1)
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State two roles of the secretion of the sebaceous glands
(Solved)
State two roles of the secretion of the sebaceous glands
Date posted:
February 12, 2018
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Answers (1)
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After a person had swum the length of a pool and climbed out of the water their skin temperature is likely to be very low...
(Solved)
After a person had swum the length of a pool and climbed out of the water their skin temperature is likely to be very low but their deep body temperature is likely to be normal.
Why is the skin surface likely to be cold for sometime after leaving water?
Date posted:
February 12, 2018
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Answers (1)
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What adverse effects do skin lightening cosmetics have on the user?
(Solved)
What adverse effects do skin lightening cosmetics have on the user?
Date posted:
February 12, 2018
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Answers (1)
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State three adaptations of the human spermatozoa
(Solved)
State three adaptations of the human spermatozoa
Date posted:
February 12, 2018
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Answers (1)
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Distinguish between Ecology and Ecosystem
(Solved)
Distinguish between Ecology and Ecosystem
Date posted:
February 12, 2018
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Answers (1)
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Ascaris lumbricoides is an endoparasite.
(a)Name the genus to which it belongs.
(b)State the habitat of the organism.
(c)tate three ways in which the organism is adapted to...
(Solved)
Ascaris lumbricoides is an endoparasite.
(a)Name the genus to which it belongs.
(b)State the habitat of the organism.
(c)tate three ways in which the organism is adapted to living in its habitat.
(d)Mention three ways of preventing spread of the parasite.
Date posted:
February 11, 2018
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Answers (1)
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Describe the consequences of deficiency of testosterone hormone in man
(Solved)
Describe the consequences of deficiency of testosterone hormone in man.
Date posted:
February 11, 2018
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Answers (1)
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What is the study of fossils called?
(Solved)
What is the study of fossils called?
Date posted:
February 11, 2018
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Answers (1)
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Describe the mechanism of gaseous exchange in the tracheal system of insects
(Solved)
Describe the mechanism of gaseous exchange in the tracheal system of insects
Date posted:
February 11, 2018
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Answers (1)
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Describe the internal structure of the heart
(Solved)
Describe the internal structure of the heart.
Date posted:
February 11, 2018
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Answers (1)
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a) Name the process that results to formation of tissue fluid.
b) What is serum?
(Solved)
a) Name the process that results to formation of tissue fluid.
b) What is serum?
Date posted:
February 10, 2018
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Answers (1)
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State the structural adaptations of veins to their function.
(Solved)
State the structural adaptations of veins to their function.
Date posted:
February 10, 2018
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Answers (1)
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State two structural adaptations of veins to their function.
(Solved)
State two structural adaptations of veins to their function.
Date posted:
February 10, 2018
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Answers (1)
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(a)Name two cardiovascular diseases. (b)If the nerve supply to the heart of a mammal is severed the rhythmic heart contraction and relaxation will go on and...
(Solved)
a)Name two cardiovascular diseases.
(b)If the nerve supply to the heart of a mammal is severed the rhythmic heart contraction and relaxation will go on and heart continues to beat. Explain why.
Date posted:
February 10, 2018
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Answers (1)