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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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 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 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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Explain the various conditions necessary for germination
(Solved)
Explain the various conditions necessary for germination
Date posted:
February 8, 2018
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Answers (1)
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Outline the characteristics of insect-pollinated flowers.
(Solved)
Outline the characteristics of insect-pollinated flowers.
Date posted:
January 31, 2018
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Answers (1)
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Describe in details the eleven organ systems found in a human body.
(Solved)
Describe in details the eleven organ systems found in a human body
Date posted:
January 31, 2018
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Answers (1)
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Discuss the below cells under the following subheadings: (a)cell adaptations. (b)cell functions. (i)Skin cell (ii)Nerve cell (iii)Muscle cell (iv)Red blood cell (v)Root hair cell (vi)Sperm cell
(Solved)
Discuss the below cells under the following subheadings: (a)cell adaptations. (b)cell functions.
i)Skin cell
ii)Nerve cell
iii)Muscle cell
iv)Red blood cell
v)Root hair cell
vi)Sperm cell
Date posted:
January 29, 2018
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Answers (1)
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Describe the adaptations of a mammalian ear to its functions.
(Solved)
Describe the adaptations of a mammalian ear to its functions.
Date posted:
January 29, 2018
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Answers (1)
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Describe the adaptations of a mammalian eye to its functions.
(Solved)
Describe the adaptations of a mammalian eye to its functions.
Date posted:
January 29, 2018
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Answers (1)
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Describe how a mammalian heart is structurally adapted to its
function
(Solved)
Describe how a mammalian heart is structurally adapted to its
function
Date posted:
January 26, 2018
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Answers (1)
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Name five methods of excretion in plants.
(Solved)
Excretion in plants.
Date posted:
January 25, 2018
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Answers (1)
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Differentiate between isolation and reverse barrier nursing
(Solved)
Differentiate between isolation and reverse barrier nursing.
Date posted:
January 23, 2018
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Answers (1)
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Give the difference between monocular and binocular microscopes.
(Solved)
Give the difference between monocular and binocular microscopes.
Date posted:
January 21, 2018
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Answers (1)
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Why do desert plants shed their leaves during the dry season?
(Solved)
Why do desert plants shed their leaves during the dry season?
Date posted:
January 17, 2018
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Answers (1)
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Describe how leaf is adapted to its function.
(Solved)
The question requires to explain how leaf is situated to its function.
Date posted:
January 17, 2018
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Answers (1)
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What is meant by the term internal environment in homeostasis.
(Solved)
What is meant by the term internal environment in homeostasis.
Date posted:
January 17, 2018
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Answers (1)
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State three differences between simple and conditioned reflex actions
(Solved)
State three differences between simple and conditioned reflex actions
Date posted:
January 17, 2018
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Answers (1)
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A common species of rats has individuals with white, black or grey coats. During a study of a rat with white coat was crossed with...
(Solved)
A common species of rats has individuals with white, black or grey coats. During a study of a rat with white coat was crossed with a rat with black coat. Both parents were pure lines. All the offspring in F1 generation had grey coats. Using letter B to represent the gene type for black coat and W for white coat, answer the questions that follow.
a) Suggest a reason to explain why there were no white or black rats in the F1 generation.
b)Name one trait in human beings that is determined by multiple allele.
c)Name one genetic disorder affecting the human eye
Date posted:
January 17, 2018
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Answers (1)
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State the function of a bait trap as used in collection of specimens
(Solved)
State the function of a bait trap as used in collection of specimens
Date posted:
January 10, 2018
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Answers (1)
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Describe the digestion of ugali and meat
(Solved)
Describe the digestion of ugali and meat.
Date posted:
January 2, 2018
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Answers (1)