Biology

Discuss what it means for a species to be a keystone species, and give an example.a. Is the species you picked on the Redlist a keystone species? Why, or why not?11. If your species becomes extinct, what changes might you expect to occur in its biome and the food web?a. Which species might benefit if your species becomes extinct, and why would that/those species benefit?b. Which species would be harmed if your species becomes extinct?c. Comment on possible interaction of these on your species:i. Mutualism (page 352 in your textbook)ii. Predation (page 352 in your textbook)iii. Competition (page 353 in your textbook)

Reproductive SystemCase Study: Prostate Cancerapprox 30 minMr. Rader, age 52 years, is undergoing a routine physical examination for his employer. During palpation of the prostate, the physician noted a hard nodule on the gland’s periphery. Lab tests revealed an elevated PSA level. The remainder of the examination did not reveal any other abnormalities.Question 1Using the information given, discuss the presentation of cancer of the prostate.Answers may vary.Question 2Discuss the predisposing factors for prostate cancer and identify the high-risk groups.Answers may vary.Question 3Discuss the variation in the growth and course of this type of cancer.Answers may vary.Question 4Discuss how the decision to treat or not to treat is made early in the course of prostate cancer.Answers may vary.Question 5If metastasis occurs, what additional manifestations will occur, and how will they be treated?

What is meant by the conception of Plum in the Golden Vase as an encyclopedic narrative? How is our assumption that a text has a single author who penned it from start to finish modified by the textual history of some of the other texts we have studied, for example, Guan Hanqing’s play “The Injustice to Dou E”?

1. Share how Covid-19 infects an individual and the manifestation and severity of the disease. What are the predisposing factors to the severity of the of disease, and how it spreads?2. Three variants of the Covid-19 (United Kingdom, South Africa variant, and the regular Covid-19s) have been identified. Pick one of the variants and describe what is unique about its mechanism of infection. What makes the virus more or less virulent?3. Our innate immunity is the first line of defense against microbes and infections. How do we ensure it is fit to deal with invading pathogens?4. What is it about acquired immunity that makes it different from innate immunity? How is it able to deal with microorganisms initially and in the future?5. Which type of vaccine to take as a precaution against the coronavirus pandemic is the luxurious opportunity, we have to deal with compared to the rest of the world. Pick one of the 3 available vaccines and describe the overall makeup of the vaccine and how it works. How effective is it compared to the other 2 vaccines?6. Identify and describe a type of autoimmune disease. Describe the triggers, causes of the disease, and how it is treated.7. Individual microbiome provides a competitive environment against pathogens. How do you ensure it is healthy and thriving? What are consumables or activities to avoid that are harmful to the microbiome?8. The Covid-19 pandemic has contributed to a lot of people learning more about viruses. How would you describe how one of the 3 variants infect their host?9. Describe the First line of defense and identify a medical condition that can compromise it.10. Describe how antibodies are able to interact and eliminate differently types of pathogens. How are they able to achieve this?11. Identify and describe a disease that has been eradicated in the USA as a result of vaccine. What do you think would be the impact of the disease if it had not been eradicated?12. Define Dysbiosis. Why is it important to have a good understanding of it, and how we can use this knowledge to maintain or improve our health?

A recent study on crime rates examines whether crime depends on sunshine. A researcher hypothesizes that sunshine makes people happy and thus reduces crime. She collects data from cities across the USA and their sunshine exposure, runs a regression and finds the following:Dependent Variable: Number of Crimes per 100,000 people (higher scores mean more crime)R2 = .45Estimate Std.Error. Sig or p-valueIntercept 2.1* 0.05. 0.000Sunny Days 0.5. 0.90 0.540Interpret the estimated slope, estimated intercept, and R2 from this regression. State whether the slope is statistically significant, how you reached that conclusion, and what statistical significance means in this case.

General MicrobiologyExercise 1 (Microbes from Natural Sources): Choose 3 microbes commonly found on raw meat and poultry and write a report for each. Be sure to include the following information for each microbe.· Microbe Name· Disease Caused· Medical Treatment· Pathogenicity Factors (what microbe does to make a person sick)· Immune ResponseThe report must be single spaced, use Calibri font, and have margins no larger than one inch. Also, be sure to not plagiarize information.Exercise 2 (Handwashing): Write a two page report on why the FDA banned antibacterial additives commonly used in over-the-counter soaps. The report must be single spaced, use Calibri font, and have margins no larger than one inch. Also, be sure to not plagiarize information.Exercise 3 (Cell Morphology): Write a one page report describing at least 3 careers in microbiology that may be obtained with a Bachelor of Science degree in Microbiology. Write a one page report describing at least 3 careers in microbiology that may be obtained with a Master of Science degree in Microbiology. Write a one page report describing at least 3 careers in microbiology that may be obtained with a PhD in Microbiology. For each career, be sure to include the following information.· Salary· Job expectations (what the person would do in that position)· Type of companies would hire that person· Other skills would be needed in the positionThe report must be single spaced, use Calibri font, and have margins no larger than one inch. Also, be sure to not plagiarize information.Exercise 4 (Simple stain and microscopy) Write a two-page report on the types of microscopy used in microbiology. Be sure to include the follow microscope types.· Fluorescent· SEM· TEM· Inverted· Polarizing· Scanning probe· Super resolutionThe report must be single spaced, use Calibri font, and have margins no larger than one inch. Also, be sure to not plagiarize information.Exercise 5 (Gram Stain) Write a two page report on Hans Christian Gram (Danish bacteriologist). Be sure to include the information on his development of the Gram stain in the report. The report must be single spaced, use Calibri font, and have margins no larger than one inch. Also, be sure to not plagiarize information.

Can you read the article and follow the instructions in the Powerpoint. You can write the answers directly in the powerpoint or in a separate paper. As the questions in the powerpoint said what is the citations ? what the material and methods which means what the cell lines, what were the reagents and drugs if were any used and what were the major assays?Finally, Complete each panel in each Figure with1) cell lines or models- if not shown in the Figures2) Key points with arrows or boxes in each figure there is a, b, c etc so in each one of those make an arrow or box for the important part in it and explain why from the paper.3) what assay used4) what drug or other treatments if not shown in the fig5) if there was an abbreviations used spelled ou

Essay Title: Ecology1. Need a 5 paragraph Essay about Ecology.2. no Maximum amount of words needed.

What is the motivation for the study – what is the broad problem in the field that the study helps to address?What is the specific hypothesis being tested?What is the experimental approach to testing the hypothesis? What was measured?What were the important quantitative results? Explain whether the results support or contradict the hypothesis. What do the results mean in terms of the broader issues that motivated the study?

1. Look up information on the 3 strains of Covid-19 taking hold in the United States of America: the predominant one circulating in the USA, the South Africa strain, and the United Kingdom strain. Describe the traits that set them apart.