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Question 3 Report
Oxygenated blood from the lungs is carried to the left atrium of the heart through the
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Question 5 Report
Which process best explains the raising upward and outward of the ribs during breathing?
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Question 7 Report
The interaction between members of the same population over scarce resources is called
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Question 10 Report
Use the data to answer this question
A class of 40 set out to determine the population of lizards in a bound field measuring 200 metres by 100 metres using the capture-recapture method.
In their first outing, the students captured a total of 360 lizards all of which were marked with indelible ink and then released back into the field.
After a one week interval the students went back into the field and caught a total of 250 lizards out of which 150 bore the indelible ink mark.
What is the estimated population of lizards in the field?
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Question 13 Report
In the nucleus of a cell, the thread-like structure in which genes are embedded is
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Question 14 Report
Thick succulent stems and leaves are an adaptation for conservation of water
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Question 15 Report
A group of interacting populations in a particular habitat can be described as
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Question 16 Report
The sum total of all the roles an organism plays in a habitat is referred to as its
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Question 17 Report
Mammals are said to be homoiothermic because their body temperature is
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Question 22 Report
Which part of Euglena performs a similar function to that of the oral groove in paramecium?
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Question 24 Report
Bacteria which derive energy for food synthesis by oxidizing certain inorganic compounds are said to be
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Question 26 Report
Which is NOT a viral disease?
Question 28 Report
An example of a disease linked to the sex-chromosome is
Question 30 Report
Which process does NOT represent a form of reproduction in plants?
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Question 31 Report
Which statement about how all life started is NOT true according to current thinking on evolutionary trends?
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Question 32 Report
The remains impressions of animals and plants preserved in rocks are referred to as
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Question 33 Report
The result of placing a plant cell in a hypertonic solution for a long time is ________of the cell.
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Question 34 Report
Use the data to answer this question
A class of 40 set out to determine the population of lizards in a bound field measuring 200 metres by 100 metres using the capture-recapture method.
In their first outing, the students captured a total of 360 lizards all of which were marked with indelible ink and then released back into the field.
After a one week interval the students went back into the field and caught a total of 250 lizards out of which 150 bore the indelible ink mark.
The population density of the lizards in the field is?
Answer Details
Question 37 Report
The pro-condition for transfusion of blood to an accident victim is
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Question 38 Report
Which process will NOT release carbon dioxide into the atmosphere?
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Question 39 Report
Which excretory product is NOT found in mammals?
Question 40 Report
The incomplete breakdown of glucose into alcohol, carbon dioxide and energy is referred to as
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Question 43 Report
Which reagent is used to test for the presence of starch in a food substance?
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