The oral vaccine theory
Hunter's theory
contaminated needle theory
colonialism theory
conspiracy theory
Ekioo answered the question on November 18, 2017 at 09:55
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Give two reasons why lipids are not suitable respiratory substrates
(Solved)
Give two reasons why lipids are not suitable respiratory substrates
Date posted:
November 17, 2017
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Answers (1)
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A strip of a herbaceous Tradescantia was cut longitudinally as shown below and placed in solution X.After one hour,the strips appeared as shown below.
(Solved)
A strip of a herbaceous Tradescantia was cut longitudinally as shown below and placed in solution X.After one hour,the strips appeared as shown below.
(a)What was the nature of solution X?
(b)What physiological process was being investigated?
(b)Account for the results at the end of experiment after one hour
Date posted:
November 16, 2017
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Answers (1)
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The diagram below shows how gaseous exchange occurs across the gill in fish
(Solved)
The diagram below shows how gaseous exchange occurs across the gill in fish
(i)What is the term used to describe this type of flow displayed above?
(ii)What is the advantage of this flow system
(iii)Name an organ in human beings that displays this flow system
Date posted:
November 16, 2017
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Answers (1)
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State two adaptations of the nephron of a desert animal.
(Solved)
State two adaptations of the nephron of a desert animal.
Date posted:
November 16, 2017
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Answers (1)
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Explain why amoeba does not require transport system.
(Solved)
Explain why amoeba does not require transport system.
Date posted:
November 16, 2017
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Answers (1)
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Describe what happens during the dark stage of photosynthesis.
(Solved)
Describe what happens during the dark stage of photosynthesis.
Date posted:
November 15, 2017
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Answers (1)
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Why is it necessary to use a sharp razor blade while preparing sections to be viewed under a light microscope?
(Solved)
Why is it necessary to use a sharp razor blade while preparing sections to be viewed under a light microscope?
Date posted:
November 15, 2017
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Answers (1)
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The lungs and ileum are adapted for absorption. State three features they have in common which facilitate absorption.
(Solved)
The lungs and ileum are adapted for absorption. State three features they have in common which facilitate absorption.
Date posted:
November 15, 2017
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Answers (1)
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Two equal strips A and B were from a potato whose cell was 30% of sugar. The strip A was placed in a solution of...
(Solved)
Two equal strips A and B were from a potato whose cell was 30% of sugar. The strip A was placed in a solution of 10% sugar concentration while strip B was placed in 50% sugar concentration. a) What change was expected in strips A and B?
Date posted:
November 15, 2017
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Answers (1)
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Explain why amoeba does not have a specialized structure for gaseous exchange.
(Solved)
Explain why amoeba does not have a specialized structure for gaseous exchange.
Date posted:
November 14, 2017
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Answers (1)
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Name two digestive enzymes that work best at acidic conditions in human body.
(Solved)
Name two digestive enzymes that work best at acidic conditions in human body.
Date posted:
November 12, 2017
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Answers (1)
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State the excretory products of plants and some of their economic importances
(Solved)
State the excretory products of plants and some of their economic importances.
Date posted:
November 10, 2017
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Answers (1)
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Name one cell organelle found in the actively respiring tissues
(Solved)
Name one cell organelle found in the actively respiring tissues
Date posted:
November 8, 2017
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Answers (1)
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Explain how plants can eliminate metabolic waste products
(Solved)
Explain how plants can eliminate metabolic waste products
Date posted:
November 8, 2017
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Answers (1)
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In an experiment to investigate a factor affecting photosynthesis a potted plant was kept in the dark overnight and then exposed to sunlight with the...
(Solved)
In an experiment to investigate a factor affecting photosynthesis a potted plant was kept in the dark overnight and then exposed to sunlight with the leaf covered in a transparent flask containing sodium hydroxide pellets
a)Why was the potted plant kept in the dark?
b)State the factor being investigated in the experiment
c)State the results obtained in the leaf
d)Explain the results
Date posted:
November 7, 2017
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Answers (1)
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What are the adaptations of the xylem vessels in the transportation of water in a plant?
(Solved)
What are the adaptations of the xylem vessels in the transportation of water in a plant?
Date posted:
November 7, 2017
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Answers (1)
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Describe how a male reproductive system is adapted to its functions.
(Solved)
This is an essay on human male reproductive system.
Date posted:
November 7, 2017
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Answers (1)
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Explain how structural features in terrestrial plants affect their rate of transpiration
(Solved)
Explain how structural features in terrestrial plants affect their rate of transpiration
Date posted:
November 4, 2017
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Answers (1)
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Explain why individual with smaller sizes require more energy per kg of body weight than those with large sizes
(Solved)
Explain why individual with smaller sizes require more energy per kg of body weight than those with large sizes
Date posted:
November 3, 2017
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Answers (1)
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Identify the type of mutation represented by the following pairs of words
Shirt instead of skirt
Hoping instead of shopping
Eating instead of tea
(Solved)
Identify the type of mutation represented by the following pairs of words
Shirt instead of skirt
Hoping instead of shopping
Eating instead of tea
Date posted:
November 3, 2017
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Answers (1)