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Describe the difference between Occupational Health and Occupational Safety
reason out the specificity of HIV on its host cell
- Based on your observations, propose one hypothesis to explain what you see. Consider abiotic factors, intraspecific (i.e. same species), and interspecific (i.e. different species) competition. How would you test your hypothesis? Provide enough explanation to allow any other student in the class to understand your idea and how you would go about testing that idea. Feel free to revisit the old field to expand your observations. (Maximum 1 double-spaced page)
If you will construct several phylogenetic trees of mammalian species using protein sequences from cytochrome c, hemoglobin, and fibrinopeptides which trees would have a more or less similar tree topology? Which trees would look very different from each other? Why is this so?
- List the 4 parameters involved in steam sterilization. (2 marks).
- What is the difference between “saturated steam” and “super-heated steam”? (3 marks)
- How is “dry air” removed from the autoclave in the beginning of the cycle? (2 marks)
- State the functions of the following parts of the autoclave: (6 marks) Safety Valve 1: Safety Valve 2 : Vacuum Release Valve:
- State 4 precautions that need to be taken when autoclaving “liquid media” in a bottle? (4 marks)
- What is the purpose of using an ”autoclave tape”? (2 marks)
- How much water should be added to the autoclave before you start the sterilization process? (1 mark)
Concerning heart disease what are the costs verses the benefits of early intervention? Should all children be routinely screened for heart disease? What are the implications for screening and for not screening? Would you as a parent want to know if your child is at risk for developing heart disease? How has COVID 19 changed medical screening needs especially with athletes and their cardiovascular system? Write a paragraph
