Pre-Lab Questions

1. Describe at least two factors that can affect the rate of a chemical reaction.
2. Describe the chemical reaction occurring in a glowstick. What type of reaction is it? How do you know a chemical reaction is occurring? What is the role of the dye?
3. Using the “If ___, then ___” format, write a hypothesis to predict what will occur to a glow stick if you change its temperature.
4. The decomposition of H₂O₂ is a first-order reaction given by the formula: Rate = k [H₂O₂]¹. How would the reaction rate be affected if the H₂O₂ concentration were double its original value?

experiment 1: temperature and the rate of chemical reaction

Data Sheet

Table 1. Temperature vs. Brightness of Glow Stick

Graph of Your Data:

Post-Lab Questions

1. Was your hypothesis supported or rejected? Use your data to support your reasoning.
2. What was the independent variable in the experiment?
3. What was the dependent variable in the experiment?
4. What are some human errors that could have affected your results?
5. What is the correlation between the brightness of the glow stick and the reaction rate?
6. How does the temperature surrounding the glow stick affect the observed brightness? Use your data to support your answer.

Please match

Female primates visibly display their fertile window, often with red or pink coloration. Do humans also do this? A study looked at whether human females are more likely to wear red or pink during their fertile window (days 6-14 of their cycle). They collected data on 24 female undergraduates at the University of British Columbia, and asked each how many days it had been since her last period, and observed the color of her shirt. Of the 10 females in their fertile window, 4 were wearing red or pink shirts. Of the 14 females not in their fertile window, only 1 was wearing a red or pink shirt.

(a) State the null and alternative hypotheses. (2 points)

(b) Calculate the relevant sample statistic, ?̂? −?̂??, for the difference in proportion wearing a pink or red shirt between the fertile and not fertile groups. (2 points)

(c) For the 1000 statistics obtained from the simulated randomization samples, only 6 different values of the statistic, ?̂? − ?̂?? are possible. The table below shows the number of times each difference occurred among the 1000 randomizations. Calculate the p-value. (2 points) Randomization distribution for difference in proportion wearing red or pink in 1000 samples ?̂? −?̂?? −0.357 −0.186 −0.014 0.157 0.329 0.500 Count 39 223 401 264 68 5

(d) Interpret the p-value. (1 point)

Just need help with part D.

The legal system continues to struggle with the issue of fetal rights. Please read the stories in the following links to help with your answers to this assignment. You may or may not use this story to help build some of your arguments for this assignment.

http://www.nytimes.com/1996/08/17/us/in-wisconsin-a-rarity-of-a-fetal-harm-case.html (Links to an external site.)Links to an external site.

http://www.cnn.com/2016/02/23/us/unborn-baby-cut-from-womb-verdict-colorado/index.html (Links to an external site.)Links to an external site.

Be sure to use at least 2 reliable/trustworthy resources in proper APA formatting

Please write 3 Pro-Life statements

1.

2.

3.

Please write 3 Pro-Choice statements

1.

2.

3.

Complete each of these statements with supporting evidence (use APA referencing and make sure it is a reliable source). These statements should be clearly explained in detail with at least 5 sentences to each. Please be creative in your arguments.

Summary of Change/No Change

Finally, in one-two paragraphs describe if and how some of these statements do or do not change during the first 3 months of a fetus' development. Try to bring in human development into these arguments. (What is taking place during these first 3 months of development?)

Be sure to include a reference page in proper APA formatting at the end of your paper.

The management of a tertiary institution in Ghana has contacted you to design and implement an ERP system for handling their internal workflows. Among other things the system should focus on student records, students’ fees management, students’ assessment, human resource functions, and payroll management. Following from this preamble, answer the question that follow. a. What is an ERP system? 2 Marks b. In not more than a page, describe how you would go about building the requested system focusing on what you would do at the first three (3) phases of the SDLC. 10 Marks c. Which system architecture would you recommend for implementing the ERP system, and why? 4 Marks d. Based on your choice of system architecture in c, write down the major hardware and software components that you would need for the successful implementation of the system. 4 Marks e. State and explain any three (3) system conversion strategies that are used to introduce new systems into organizations. 6 Marks f. Which one of the conversion strategies discussed in e, would you use to introduce the ERP system to your client and why? 4 Marks g. State any six (6) use cases of the ERP system, and draw a use case diagram for the system using the identified use cases only.

1. You’re riding your bike in the bike lane through Golden Gate Park. Suddenly, you drift out of the bike lane and into automobile traffic. Fortunately, you quickly move back into the bike lane and continue toward Ocean Beach. This scenario is a metaphor for homeostasis, where the controlled condition (physiologic variable) is the position of the bike on the road (e.g., inside or outside the bike lane). Identify: (a) The established set point for the controlled condition (b) The receptor (c) The control center (integration center) (d) The effector There’s no need to explain the physiology of vision or muscle contraction. Rather, demonstrate your understanding of feedback systems by mapping the components of a feedback system onto this scenario.

2. The three-dimensional shape of a protein determines its function. Briefly explain these terms as they relate to protein shape and provide a supporting example for each: denature, conformational change, genetic mutation. Each example must include a specific protein.

3.Compare and contrast simple diffusion and facilitated diffusion. In other words, how are they similar and how are they different? Provide supporting examples for each.

4.(a) What is the osmolarity of a solution containing 85 mM C6H12O6, 120 mM KCl, and 24 mM CaCl2? Show your calculations. (b) What would happen to human blood cells put in the solution above? Explain.

What are all the strengths and all the weaknesses related to the external validity of the research design in Item 3

Scale scores were the average of the item scores. Table 3 reports reliability results for the six scales. Alpha reliability coefficients are listed in bold-face type. Discriminant validity may be measured by the inter-scale correlation coefficients shown on the diagonal in that table. Table 3: Reliabilities of State and Nonprofit Scales Scale Reliability State Importance .67 State Alternative Availability .73 State Pressure .63 Nonprofit Importance .70 Nonprofit Alternative Availability .70 Nonprofit Pressure .75 The remaining eight scales were divided, four each for state departments and non-profit agencies, into individual service areas. These were arts, health, developmental disabilities, and human services. The first set of four examined dependence of the state departments on nonprofit agencies in the four areas; the second set of four scales assessed the dependence of nonprofits on state agencies in the same four areas. The average of the three individual scale scores measuring state agency dependence on nonprofit agencies became Dsn in the model. The average of the three individual scale scores measuring nonprofit agency dependence on state agencies became Dns. These reciprocal resource flows, understood together, became the basis for a g e n e r a l model of resource dependence between sectors.

What are all the strengths and all the weaknesses related to the internal validity of the research design in Item 3

Scale scores were the average of the item scores. Table 3 reports reliability results for the six scales. Alpha reliability coefficients are listed in bold-face type. Discriminant validity may be measured by the inter-scale correlation coefficients shown on the diagonal in that table. Table 3: Reliabilities of State and Nonprofit Scales Scale Reliability State Importance .67 State Alternative Availability .73 State Pressure .63 Nonprofit Importance .70 Nonprofit Alternative Availability .70 Nonprofit Pressure .75 The remaining eight scales were divided, four each for state departments and non-profit agencies, into individual service areas. These were arts, health, developmental disabilities, and human services. The first set of four examined dependence of the state departments on nonprofit agencies in the four areas; the second set of four scales assessed the dependence of nonprofits on state agencies in the same four areas. The average of the three individual scale scores measuring state agency dependence on nonprofit agencies became Dsn in the model. The average of the three individual scale scores measuring nonprofit agency dependence on state agencies became Dns. These reciprocal resource flows, understood together, became the basis for a g e n e r a l model of resource dependence between sectors.

Just what is coral? What kind of creature creates coral?

What are zooxanthellae? What significance do algae have in the formation and health of coral reefs? How does this affect the ocean depth at which corals can remain healthy?

Coral reefs have existed for millions of years, but all modern coral reefs are no more than 10,000 years old. Why? In other words, what happened to cause the deaths of the ancient coral reefs 10,000 years ago? You're looking for a pretty specific answer here. NOTE: There was nothing going on with respect to human civiliazation 10,000 years ago that could have had any impact on the world's coral reefs.

Following the Coral Reefs Plundered Around the World link, read about concerns about coral reef health. What ecological problems are threatening the world's reefs?

How could the death of a coral reef, which is just below the surface of the water, affect the lives of organisms living in the depths of the open ocean? You probably won't find this answer; you'll have to think about it.

Why should we care about the loss of the coral reefs? This question relates both to the "what use are they?" issue, and to broader, less selfish issues.

Finally, what can one person do to help reduce the assault on coral reefs?

In this discussion, you will explore how DNA information is turned into specific proteins. What is transcription and translation? What are the different types of mutations? In our next discussion, we will look at how these mutations, when occurring in specific genes, can lead to cancer.

Instructions

1. For your initial post, compete all of the following:

   Part 1

   1. Describe the basics of transcription and translation. Where in human cells does each of these processes occur?
   2. What are start and stop codons?
   3. What are insertion, deletion, and substitution mutations?
   4. What are frameshift, missense, nonsense, and silent mutations?
   5. Which type of mutation is most likely to cause a change in a protein’s structure and function (frameshift, missense, nonsense, and or silent mutations)? What is least likely to change the protein’s structure and function? Explain.

   Part 2

   1. Write your own sequence of DNA that could be turned into a protein. This should be approximately 30 letters long (10 codons). It should be in the format 3’ AAG CCC ….. 5’
   2. Be sure to include a start codon of “TAC” and a stop codon of your choice. Do not do any transcribing or translating at this time. Just include the DNA sequence in the 3’ to 5’ direction.
   3. Write a mutated sequence based on your first sequence above with either an insertion, deletion, or substitution mutations. Do not write anywhere what type of mutation has occurred. Just write the sequence itself.