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Explain what you consider to be the positive and negative aspects of cloning both scientifically

Discuss how mitosis and meiosis as cell division methods maintain the chromosomes number of one species

Why is soap effective in killing coronavirus? What structural part gets targeted by soap and how? Be specific in

explaining the structure details


Can flu vaccine prevent covid 19? Clearly mention yes or no in your response. Explain the rationale of your choice (yes or no)

in 2 to 3 sentences.


Can antibiotics treat covid 19? Clearly state yes or no in your response. Explain the rationale of your choice (yes or no)

in 2 to 3 sentences.


Is the Wuhan virus same as SARS? Clearly state yes or no in your response. Explain the rationale of your choice (yes or no) in

2 to 3 sentences.


What does it mean that viruses are acellular?


  1. How do the endoplasmic reticulum and the Golgi bodies interact within an animal cell? (3 marks)
  2. How is light important to a) plants, and b) animals? Give two different, specific examples for each type of organism. (4 marks)
  3. Five major events in the history of life are listed below. Place these events in the (hypothesized) correct sequence of events, from earliest to most recent, in the evolution of life on Earth. Explain why you have placed each in that particular sequence. (5 marks)

A. Origin of chloroplasts

B.Origin of multicellular eukaryotes

C.Origin of mitochondria

D.Origin of aerobic heterotroph bacteria

E.Origin of animals

4.Explain how the endomembrane system, chloroplasts, and mitochondria are all

thought to have originated from ancient prokaryotes. What is the name of this

hypothesis, and what evidence supports it? (8 marks)

5.Compare and contrast (i.e. describe the similarities AND differences between) a

generalized animal cell and a generalized plant cell. (10 marks)



how many lysosomes does one human liver contain?


The maternal part of the placenta. Hemochorial barrier

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