Bio quiz on sexual selection


  1. Male bower birds (birds that look like crows and live in Australia and Papua New Guinea) make elaborate structures (called bowers) out of grass and twigs. Males decorate their bowers with objects they find, like feathers of other birds, pieces of glass, shells, and bits of plastic: items that have no direct benefit to females. Females find some bower decorations VERY sexy and will mate with a male based on his bower decorations.

A. Propose a hypotheses for why this behavior in males and females evolved.

In pipefish (fish related to seahorses) instead of the female carrying the growing offspring, the male holds them in a brood pouch in his body until they hatch out. Basically, male pipefish are pregnant and their bodies supply the growing embryos with some nutrients required for development.

  • Large females that mate with males create more costly broods for males. In other words, it takes more energy for males to sustain their pregnancy with these offspring, mostly because many embryos inherited large size from their mother. Generally, the offspring of large mothers survive better than the offspring of small mothers.
  • Males can’t sustain multiple pregnancies in a short period of time from large females without substantial risks to their own health and survival.
  • After mating with a small female, male pipefish can “increase the rates of offspring abortion in pregnancies…to retain resources for future reproductive opportunities” (Paczolt & Jones, Nature, 2010).

A. Is the phenomenon of male-induced abortions Intersexual Selection or Intrasexual selection?

B. How would you describe it using the Sexual Selection categories that we discussed in class? (Hint: it is possible that we didn’t discuss this phenomenon from the male’s point of view.)

C. Briefly describe why you think such a phenomenon would evolve: specifically, why would males abort a brood of offspring mothered by a small female?

  1. In black goby fish, males build nesting sites (a “cave” made out of rocks and shells) in which the females lay their eggs. Males fertilize these eggs then care for them until hatching. Males attract females to their nesting sites by releasing pheromones (chemicals that influence the behavior of other goby fish) into the water. These pheromones also provoke aggression in other males.
  • In addition to “parental males”- those that create nesting sites and care for young, there are smaller males that do not make nesting sites but swim into the nests of other males (usually undetected) while a female is there laying eggs. These smaller males then release sperm in order to fertilize that female’s eggs.
  • Parental males have a large gland that produces lots of their “sexy” pheromone, while the smaller non-parental males have only a tiny pheromone gland.
  • In experiments, parental males exposed to the glandular extracts of other males (which would contain the pheromone) reacted with aggressive behaviors like tail-beating and biting toward the source of the pheromone. When parental males were exposed to the glandular extracts of small, non-parental males, they had no reaction (Locatello et al., Journal of Experimental Biology, 2010).

A. Is the phenomenon of non-parental males in this mating system an example of Intersexual Selection (between two different sexes) or Intrasexual selection (within the same sex)?

B. How would you describe it using the Sexual Selection categories that we discussed in class?

C. Briefly describe why you think such non-parental males would evolve to have no sexual pheromones.

Informative presentation directions | Social Science homework help


Presentation: Informative Presentation Directions

Assignment:Informative PresentationTime limit: 4-6 minutesPoint value:75 PointsInstructional materials:Chapter 10 – Topic Selection
Chapter 11 – Using Supporting Materials (pgs. 296-301)
Chapter 12 – Organizing your Presentation
Chapter 13 – Delivery (pgs. 340-355)
Chapter 14 – Informative Presentations
Submission:See Recording Instructions below

An informative speaker shares information with others to enhance their knowledge or understanding of a particular topic. Most adult audiences enjoy information that is relevant to their own lives and needs. 

This assignment will give you the opportunity to gain experience speaking extemporaneously, to narrow a topic and organize content using a pattern of organization, and to orally cite sources of supporting material.


  1. Select a topic which allows you to inform your audience of a significant aspect of a culture that is different than your own. Possible topics include social customs, family traditions, holidays, clothing, food, religious traditions, and sporting activities. Refer to Chapter 7 of your text as a guide. 
  2. Research your topic. Be imaginative in choosing content for your speech. It is not enough to simply summarize basic information from the Internet about a country or culture. Narrow the topic by selecting one specific aspect on which to focus your ideas. 
  3. Organize the main points of your speech using an informative pattern of organization. Your speech should give your audience a deeper understanding of your topic, but should not be designed to affect your audience’s beliefs, attitudes, or behavior.
  4. Provide adequate support for each main point by citing at least three credible sources in the speech. Incorporate examples, narratives, testimonial evidence, statistics, analogies, explanations, and/or definitions where appropriate. Sources must be cited orally in the speech. If you have had direct contact with a different culture, you should supplement your research with your personal experience.
  5. Create an introduction and conclusion.
  6. Once you have thought through each part of the speech (introduction, body, & conclusion), create a rough draft outline of the speech. 
  7. Create speaking notes to use during your delivery. Use key words and phrases rather than complete sentences. Your notes should serve only as a memory aid and should not be a word-for-word manuscript of your speech.
  8. Practice your presentation before videoing yourself so that you can deliver the information with only occasional glances at your notes. 
  9. Consider asking friends or family members to view your presentation before submitting. 

Need some inspiration?  Check out the presentations below:

How will I be graded?
Click here to open the rubric which will be used to evaluate your submission.

When Recording your final draft: After recording has started but before you begin your assignment you must verify your identity by holding a valid state- or nationally- issued picture ID to the camera so that it is visible and recognizable to our assessment staff. If you do not do this step you will be asked to resubmit. A driver’s license or passport are preferred.
Recording Instructions

Submitting for this assignment is an easy three-step process:

  • Record
  • Upload to YouTube
  • Submit a link to your YouTube video

You can record and save videos using software on your computer before uploading them to YouTube. The most common computer recording programs are Camera for Windows 8+ and Photo Booth for Mac OS X (a download may be required). You may also use your device manual to look up how to record videos. After saving your video to your computer, please upload it to YouTube.

An alternative approach is recording a video on mobile device (phone or tablet). Please note that this could affect the quality of your video and you will need to download the YouTube app to upload your video.

Using YouTube: YouTube is a free service which allows anyone to post videos online and share them. Please understand that your videos do not need to be public. You may make your video Unlisted as long as you share the link with StraighterLine for evaluation. You should not make your video Private because graders will not be able to view it. Once you have received feedback you can delete your video or make it private, however, good work is always worth sharing (though we do recommend that you edit out any appearance of your ID).

Public policy | law and ethics

Write a 750-1,000 word paper in which you review public policy and how it affects employment. Address the following scenarios:Scenario 1: Nurse Deb was due for her annual flu vaccination as mandated by her hospital’s policy. Nurse Deb is a big supporter of the antivaccination movement and refused to obtain her annual flu vaccination. Upon notice that nurse Deb did not obtain the vaccination, the nurse manager fired Nurse Deb. Nurse Deb has decide to file a wrongful termination suit. As the director of nursing, how would you handle this situation?What evidence does Nurse Deb have that could help her win the case?What law protects the hospital’s mandated vaccination procedures?How concerned should the hospital be if the lawsuit is a success?Scenario 2: Joe Gomez worked as a plant operations specialist at Premier Hospital. While Joe’s manager was working on the HVAC system that protects patients from harmful viruses and bacteria, he noticed that he was not using OSHA-approved filters. Joe felt that it was important to report this to the compliance officer. The day following his report, Joe was fired by his manager. As the CEO of Premier Hospital, how would you handle the situation?How concerned should you be about the termination of Joe?What legal principles are involved?If Joe was a member of the local employee services union, does this make the termination different?

Jccmi- client growth and develop week 2

Chapters 5-8


1.  Choose a topic from one of the chapters in this week’s reading assignment and write a summary about the topic as follows:

  • Why it interested you, 
  • What you believe might interest someone else, and 
  • How you believe it might aide you in the future.

2.  Choose an article from a credible source and post it with your summary, with an explanation as follows:  

  • How the article related to your topic.
  • A brief summary of what the article is about.


CHP 5-  Questions: Opening Communication

Chp 6-    Encouraging, Paraphrasing, and Summarizing: Active Listening and Cognition 

Chp 7-    Reflecting Feelings: The Heart of Empathic Understanding  154  

Chp 8-     How to Conduct a Five-Stage Counseling Session Using Only  Listening Skills 

Theres differnt items under each ,I’m sure you can pull it up though but you have the link to book

Glst 220 book review | GLST 220


Book Review Instructions

You will write a 1,000-word book review of The King Jesus Gospel by Scot McKnight. This review will contain a short summary of the book, a personal response, a discussion of the book’s strengths and weaknesses and an application of the book in your life. You must follow the guidelines carefully. Use the following format in preparing your Book Review:

1. Summary: Summarize what you have read into 250 words. Prove that you comprehend the readings by writing a no-nonsense summary (picture a summary similar to reading the back cover of a book to decide if you want to read it).

2. Concrete responses: In at least 250 words, relate a personal life experience that this book connected with in your own life. Relate your story in first person, describing action, and quoting sentences you remember hearing or saying. You will remember almost nothing you have read unless you make this critical, personal connection. What video memory began to roll? This is your chance to tell your story and make new ideas found in the book your own.

3. Reflection: What new questions do you have in response to what you have read? Keep a rough note sheet at hand as you read. Begin with questions like: “What would I like further information on?” “Where do I disagree/strongly agree with the author?” “What bothers me/excites me about this content?” “What are the strengths and weaknesses of this book?” This section must be at least 250 words.

4. Application: How does information in the book influence how you are going to continue your own personal growth process? What actions or changes are you going to make in your life as a result of your learning? Your response here is a matter of obedience first, questions later. Be precise in summarizing your action steps (limit these comments to about 250 words).

Note: Your grade for the Book Review depends on the quality and thoroughness of your response to each of these four headings. Include each heading in the body of your paper.

Research finding | Marketing homework help

 1) Word count: More than 1500 no less than this

2) References: Chicago format

3)  Search for Journal articles (2010 and above) Should not contain 2010 and below

4)Based on the previous part “TEAM 3 METHODOLOGY FINAL-edited” to come out with the finding of quantitative finding and recommendation

5) Focus just on Quantitative finding (refer to BBS301_Final Handout version (1), same format as this sample)

6) Focus just on Quantitative recommendation (refer to BBS301_Final Handout version (1), same format as this sample)

7) To Fill in the individual activity record word document as well(attached form)

8) Refer to the “spss output” for the result from the survey

9) Refer to “BBS301 TMA 2019 Consultancy Handbook” printed Page 11 – 12 on the guide read carefully what is required for Phase 6

10) Have clear referencing and clear in-text citation(not in number kind)  

11) “Critical success factors in relationship management for services outsourcingpdf” is for reference 

12) Take note of the language use 

13)  Urkund Score cannot exceed 10%

This is an essay about business policy course.


this is the essay for Business Policy.

It should be no more than 3 pages and written by attached files.

The deadline is within 24 hours from now.

The company is “Emirates Airline”.

And you should answer the following questions about the focal company in the case by applying relevant concepts or frameworks that have been covered in class till date:

(a) What factors or approaches have enabled the company to deliver strong performance in the past? 

(b) What are some of the important issues confronting this company and what external developments and internal actions might have caused these issues?

(c) If you were the CEO, what courses of action would you pursue to address these issues? Explain how you would implement these, how they would address each issue, and what potential risks may exist.

Thank you for reading this and have a good one!

Company portfolio | Operations Management homework help

This assignment requires you to compile Parts 1, 2, and 3 into one document, which will be your final report on the global aspects of your selected company. Do not just copy the material from weeks 2, 4, and 6 into the final paper. Make necessary edits before submitting the paper.

  • Your report should be 8-10 content pages, not including title page or references. 
  • APA format is required, typewritten in double-spaced format (Arial 12-point font or Times New Roman styles), page margins Top, Bottom, Left Side and Right Side = 1 inch, with reasonable accommodation being made for special situations and online submission variances.
  • Your paper will be automatically submitted to Turnitin in the assignment dropbox. Originality reports will be returned to the faculty and student. Multiple submissions are allowed. For full credit, make sure that your Similarity Index does not exceed 20%.

Video observation | Education homework help

**If you’re unable to physically observe a classroom, find a YouTube video as it relates to “print”. When submitting your assignment make sure you paste the link to the video in the comment box.

Title: Print Awareness/Concepts Observation

Assignment: Observation of Print in a Preschool Classroom

Observe a Preschool or NC PreK program.  Notice and list all print script letter forms found in the classroom that are within the children’s view or eye level.  Report what you see in 2-3 paragraphs.  In the first paragraph, talk about what you see as print worthy in the classroom.  Take time to look around the room and see what is on the walls and around the room that is printed.  In the second paragraph or (list) talk about everything that you see that is print worthy and at the children’s eye level.  Talk about these items and how they are used and are beneficial to the children in their quest to learn the alphabet and learn words- print concepts.  If you want you can add a third paragraph that includes your concerns about the lack of print in the room or your approval of what is print worthy in the room. 

Grading Criteria

The assignment is worth 100 points.

First Paragraph with 7-10 sentences- 40 points 

Second Paragraph (or list) with 7-10 sentences or at least 15 items listed- 40 points

Third Paragraph if needed and Grammar and spelling errors- 20 points