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QUESTION 1
(a) Describe what is meant by the following terms-
(i) Community
(ii) Ecosystem
(iii) Habitat
(iv) Population
(b) Industrialisation and population growth have had a negative impact on the natural environment resulting in pollution. Elaborate on the different types of pollution and discuss some of the measures that can be taken to mitigate their effects
(c) Describe the Nitrogen Cycle with emphasis on the role of microorganisms
QUESTION 2
"It is believed that eukaryotic cells have evolved from prokaryotic cells." Discuss this statement with reference to the differences between these two types of cells
QUESTION 3
(a) Using a labelled diagram show the different parts of the human respiratory system and describe the mechanism of breathing
(b) The human respiratory system is susceptible to a number of diseases. List and describe the causes and symptoms of five such diseases
QUESTION 4
(a) Draw a labelled diagram of a motor neurone
(b) Describe the sequence of events which takes place during transmission of an action potential and describe how information is transmitted across a cholinergic synapse
(c) Briefly describe one example of a reflex arc
Social Groups) Brefly describe the ant colony by using the following sociological concepts,and the provide your example/discription.1.primary groups 2. in groups 3. reference groups
How might the presence of intergalactic dust as an agent for reddening and dimming the light from ever more distant galaxies affect the determination of galactic distances assuming that galaxies all have the same brightness?
A granular soil located in a borrow pit is found to have an in-place dry density of 1,895 kg/m^3. In the laboratory, values of dry maximum density and minimum density are determined as 2,100 kg/m^3 and 1,440 kg/m^3, respectively. From this informatio..
Thinking About Thinking
What types of data records are used to provide information on historical climatic change and describe the three orbital parameters that affect climate on the time scale of Pleistocene glacial-interglacial change.
Most people with psychological disorders are not violent. But society has big problems dealing with those who are. A 1999 Justice Department study reported that about 16 percent of the inmates in American jails and prisons had severe mental disorders..
Is there really any true significance to the family birth order? Explain how sociological factors can contribute to inequality among siblings. How and why has family size, type and other aspects of family life changed from 1900 to 2000 (or so)?
After taking a random start between 1 and 20 and then taking every 20th element from the sampling frame, Smith learned that 40% of the sample believed the company's president was doing a good job. The calculated standard error was 3 percent. What was..
Who are two theorists that i can select that have opposing ideology on some aspect of psychological phenomenon
Describe the competencies that caught your interest. Explain why.(1) emotional self awareness, (2) managing emotions
Prepare a report evaluating the product with respect to its cleaner design aspects - In addition to eliminating waste this concept may also increase product functionality and profitability.
1.Is it possible for someone to become a chocoholic--a person addicted to chocolate? Why or why not?
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