Determining Population Growth Assignment

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Determining Population Growth Assignment

In one year, biologists tracking a bear population counted 33 new baby bear cubs in a population of 546 bears.

  1. Calculate the birth rate (b) of this population.
  2. In the same year, the biologists counted 28 black bear deaths. Calculate the death rate for this population.
  3. What is the per capita rate of increase for this black bear population?
  4. What would you estimate the change in black bear population size would be for the following year? Be sure to adjust the N to reflect the new births and deaths. When you get your answer, round to the “nearest bear” and answer the question – is this population increasing or decreasing in size?
  5. Determine the number of births and deaths you would expect the following year. Round to the “nearest bear”.

What problem is David Sinclair approaching this problem?

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bio 7,8,9

A cure for Ageing……….

1. What problem is David Sinclair approaching this problem? (What is his background?)
2. Does he believe studying yeast cells can provide answers to ageing? Why or why not?
3. What were a couple of the motivating factors that led him to study ageing?
4. What does David say about the increasing number of senior citizens (economically?)
5. Does David believe that ageing is natural?
6. David claims 99% of all research is devoted to what three diseases?
7. What does David belong is WRONG with studying individual diseases?
8. Is the rate of ageing increasing or decreasing and how does this relate to health costs for seniors?
9. What happens to cells as they grow older (with regard to genes)
10. How can this process be reversed?
11. Does David support the mutation theory of ageing or epigenetic theory?

12. What does David claim Sirtuins do in the body?
13. How does David claim Sirtuins are secreted (naturally) in the body? (What two activities can we do to release them)
14. Why did David want to stop practicing science?
15. What is the status of his research today?

What does mythology tell us about living forever?

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bio 7,8,9

1. What approach is David Duncan using to analyze “living forever”? (What is his background, what is he examining? (2 points)
2. What does mythology tell us about living forever?
3. What are three ways that David describes are ways that we can extend life?(6 points)
4. What is resveritol? (2 points)
5. What does he suggest are the pros and concs for extending our lives…..100-200 to even 400 years in the futures? (2 points)
6. Does Gary want to partake in cryo genics? What is his reasoning at the end of the video? (2 points)

Diet Analysis

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Introduction to Nutrition
NUTR 235
Assignment II- Diet Analysis
Objective: to evaluate personal nutrient/diet and use informatics principles and technology to collect and analyze data.
Description: for this assignment you will examine three days of your eating and drinking identifying the caloric value for each food and drink item you consume. Additionally, you will list the carbohydrate, fat (total fat, saturated fat, polyunsaturated fat, monounsaturated fat and trans fat) and proteins measured in grams. Also, you will need to include the total grams of fiber.
After recording all of the food and beverages you ate for the three days and after recording the nutrient value of your food analysis, you will be required to assess whether your current diet is adequate, too much, or deficient in meeting your total energy and macronutrient needs. You can use the link here to estimate your daily caloric need https://www.supertracker.usda.gov/default.aspx.
You will be required to create a free account. After your account set up, will be able to obtain your daily caloric needs as well as your Body Mass Index (BMI). You will compare your caloric intake for the three days to the total energy need you identified after setting up your account on the Supertracker website. Does your daily caloric intake for the three days meet your required needs?
Note: you must select days in which you consumed food. It is not acceptable to submit a diary that shows you did not eat or drink anything for the day. Please choose a typical day for you.
Your completed assignment should include the following:

1. Your calculated daily caloric intake obtained from the link provided above

2. List of your typical food intake for three days; preferable from a weekday and weekend.

3. Analysis of the nutrient value of your food intake- to include macronutrients (carbohydrates, fats, proteins), micronutrients (vitamins and minerals), fiber.

4. Describe how you can address any deficiencies or excesses from your nutrient analysis.

a. If your current dietary practices perfectly address your needs, explain how you achieve this goal.

5. Explain any health consequences that may be of concern if you continue with your current dietary practices.

6. A concluding paragraph to summarize your key points.

Note: Attached is a link to the Recommended daily Nutrient intake (RDA). Please use the RDA to examine if you are meeting your daily-recommended intake for micronutrients.

· RDAs https://www.ncbi.nlm.nih.gov/books/NBK56068/table/summarytables.t2/?report=objectonly
https://www.ncbi.nlm.nih.gov/books/NBK56068/table/summarytables.t3/?report=objectonly
For this assignment you will be required to provide at least three pages minimum. Use the following format: 12-font size, double spaced, and Times Roman font style. Also attach a copy of your nutrient analysis to the assignment.
This assignment is worth 100 points. Submit your completed work in one document through blackboard. The assignment due date is March 25th, 2018 at 11:59pm.