Benign microbiota species make their home on human body surfaces and prevent the colonization of harmful microbiota species onto humans. This interaction is best considered:

Group of answer choices

A) A mutualism between humans and their benign microbiota

B) A commensalism between humans and their benign microbiota

C) Intraspecific competition between the benign and harmful microbiota

D) Interspecific competition between the benign and harmful microbiota

E) Both A & D

A classic study by MacArthur and Wilson demonstrated that as the size of islands increases, species:

Group of answer choices

A. richness increases.

B. richness decreases.

C. diversity increases.

D. diversity decreases.

E. richness and diversity are not affected by island size.

In a study of Oregon intertidal communities, little brown barnacles (Chthamalus dalii) are first to colonize disturbed areas. Over time, the community comes to be dominated by the acorn barnacle (Balanus glandula). Which mechanism of succession explains the relationship between the two species of barnacles?

Group of answer choices

A. Facilitation

B. Tolerance

C. Inhibition

D. Suppression

Which of the following is NOT a trait of a pioneer species?

Group of answer choices

A. Many seeds

B. Shade tolerant

C. Small seeds

D. Fast growing

A grassland habitat produces 5,000,000 available food calories per day from plants. If each organism in the community requires 1,000 calories per day, how many organisms could survive if feeding at the level of a primary consumer? What about if all fed at the level of a secondary consumer?

Group of answer choices

A. 50; 5

B. 50; 500

C. 500; 50

D. 5,000; 500

E. 5,000; 50

Which of the following represents how good a consumer is at obtaining energy from the available food in its habitat?

Group of answer choices

A) Assimilation efficiency

B) Ingestion efficiency

C) Net growth efficiency

D) Gross growth efficiency

Which of the following accurately depicts the flow of carbon between primary producers, consumers and decomposers?

Group of answer choices

A) primary producers -> consumers -> decomposers

B) consumers -> primary producers -> decomposers

C) decomposers -> primary producers -> consumers

D) decomposers -> consumers -> primary producers

Once an infection begins, a pathogen has passed the passive barriers, and the human immune response kicks in. This is a multifaceted and complex series of interactions and possibilities. I want you to explain how two responses could have occurred and will likely proceed. (a) a virus is quickly opsonized and consumed by a macrophage. (b) a bacterial pathogen you have never encountered bumps into one of your B-cells that possesses a matching antibody (what happens next)

1. The U.S. Department of Health and Human Services Agency for Healthcare Research and Quality has identified seven Portfolios of Research. The full list can be viewed at http://www.ahrq.gov/cpi/portfolios/index.html

2. Two of the Portfolios of Research that are of key importance to this week's learning are

(1) Health Information Technology and (2) Patient Safety.

Describe how these two Portfolios of Research relate to the ONC's Health Information Technology Patient Safety Action and Surveillance Plan: June 2013 (Washington, DC: Office of the National Coordinator for Health Information Technology, 2013).

please include references

The director of human resources for a large bank has compiled data on about 70 former employees at one of the bank’s call centers (see the below file Call Center Data). For each of the following, assume equal variances of the two populations.

a. Test the null hypothesis that the average length of service for males is the same as for females.

b. Test the null hypothesis that the average length of service for individuals without prior call center experience is the same as those with experience.

c. Test the null hypothesis that the average length of service for individuals with a college degree is the same as for individuals without a college degree.

d. Now conduct tests of hypotheses for equality of variances. Were your assumptions of equal variances valid? If not, repeat the test(s) for means using the unequal variance test.

Locate one or more Web sites that explain the acid-base balance of the human body. The Web sites should be valid scholarly references. It is suggested to search through the ODU library database. Please do not use Wikipedia. The URL will most likely end with “edu” or “org.” Use the Web sites to answer the following questions. Please do not cut-and-paste the text from the Web site. You should paraphrase and properly reference (APA) each Web site. Use complete sentences and please limit the use of lists and bullets. Questions:

1. Explain metabolic acidosis and alkalosis. Please be thorough.

2. Explain respiratory acidosis and alkalosis. Please be thorough.

3. What disease states are connected with metabolic acidosis?

4. What disease states are connected with metabolic alkalosis?

5. What disease states are connected with respiratory acidosis?

6. What disease states are connected with respiratory alkalosis?

7. How does hypoventilation correct a pH imbalance?

8. How does hyperventilation correct a pH imbalance?

9. How does the kidney correct a pH imbalance?

10. What are the normal ranges for blood gases?

11. Proper APA reference list of the Web sites.

Human beta endorphin (HBE) is a hormone secreted by the pituitary gland under conditions of stress. An exercise physiologist measured the resting (unstressed) blood concentration of HBE in 3 groups of men: 10 who had just entered a physical fitness program, 13 who had been jogging regularly for some time, and 14 sedentary people.

Compute the value of the grand mean, (X^-) Use at least 3 digits to the right of the decimal.

Compute the treatment sum of squares, SSA.

Compute the error sum of squares, SSE.

Compute the total sum of squares, SST.

Enter the degreees of freedom associated with
SSA  
SSE  
SST

Which of the statistical tables should you use?
F-distribution
z-distribution
X2-distribution

What are the degrees of freedom associated with the test statistic?
Numerator df:  
Denominator df:

Calculate the test statistic.

Which interval in the table contains the p-value for the test? (Use the table on the course site and confirm your answer with software.)
p-value ≤ 0.001
0.001 < p-value ≤ 0.01
0.01 < p-value ≤ 0.05
0.05 < p-value ≤ 0.1
0.1 < p-value ≤ 0.25
p-value > 0.25

It is known that roughly 2/3 of all human beings have a dominant right foot or eye. Is there also right-sided dominance in kissing behavior? An article reported that in a random sample of 112 kissing couples, both people in 70 of the couples tended to lean more to the right than to the left. (Use α = 0.05.)

(a) If 2/3 of all kissing couples exhibit this right-leaning behavior, what is the probability that the number in a sample of 112 who do so differs from the expected value by at least as much as what was actually observed? (Round your answer to three decimal places.)


(b) Does the result of the experiment suggest that the 2/3 figure is implausible for kissing behavior?
State the appropriate null and alternative hypotheses.

H₀: p = 2/3
H_a: p < 2/3H₀: p = 2/3
H_a: p ≤ 2/3    H₀: p = 2/3
H_a: p > 2/3H₀: p = 2/3
H_a: p ≠ 2/3

Calculate the test statistic and determine the P-value. (Round your test statistic to two decimal places and your P-value to four decimal places.)

State the conclusion in the problem context.

Reject the null hypothesis. There is sufficient evidence to conclude that the true proportion of right-leaning behavior differs from 2/3.

Reject the null hypothesis. There is not sufficient evidence to conclude that the true proportion of right-leaning behavior differs from 2/3.  

  Do not reject the null hypothesis. There is sufficient evidence to conclude that the true proportion of right-leaning behavior differs from 2/3.

Do not reject the null hypothesis. There is not sufficient evidence to conclude that the true proportion of right-leaning behavior differs from 2/3.

1.According to a Human Resources report, a worker in the industrial countries spends on average 419 minutes a day on the job. Suppose the standard deviation of time spent on the job is 27 minutes.

a. If the distribution of time spent on the job is approximately bell shaped, between what two times would 68% of the figures be?
enter the lower limit for the interval where 68% of the values would fall  to enter the upper limit for the interval where 68% of the values would fall   

b. If the distribution of time spent on the job is approximately bell shaped, between what two times would 95% of the figures be?
enter the lower limit for the interval where 95% of the values would fall  to enter the upper limit for the interval where 95% of the values would fall   

c. If the distribution of time spent on the job is approximately bell shaped, between what two times would 99.7% of the figures be?
enter the lower limit for the interval where 99.7% of the values would fall  to enter the upper limit for the interval where 99.7% of the values would fall   

d. If the shape of the distribution of times is unknown, approximately what percentage of the times would be between 358 and 480 minutes?
enter percentages rounded to 1 decimal place % (Round the intermediate values to 3 decimal places. Round your answer to 1 decimal place.)

e. Suppose a worker spent 400 minutes on the job. What would that worker’s z score be, and what would it tell the researcher?
z score = enter the z score rounded to 3 decimal places  (Round your answer to 3 decimal places.)

This worker is in the lower half of workers but within select the distance from the mean                                                           onethreetwo standard deviation of the mean.

human nutrition topic; You are stranded on a tropical island that can grow all kinds of vegetation. You are in charge of what is grown on the farm for people that have diabetes, diverticulitis and heart disease. What 5 carbohydrate foods would you plant and why? There is a genetic predisposition for having diabetes however, what 2 health tips would you encourage the students in your class to follow to stay healthy and avoid getting diabetes in the future.

In the case of human relations, marriages occur frequently. Once the business combination occurs, the assets and liabilities of the company become one. This is the same when a parent company buys a subsidiary corporation. You have noticed in your reading that intercompany transfers must be adjusted. With this in mind, please answer the following questions: • Why are adjustments necessary for intercompany transfers? • What are some ways the financials would be misstated if these intercompany transfers were not adjusted? • Provide an example on how a firm could manipulate the firm’s financial position and how these intercompany entries fix this problem.