ECOL330-Final-2007

ECOL330-Final-2007 - Natalie Oughourlian Name Natalie...

Info icon This preview shows pages 1–3. Sign up to view the full content.

View Full Document Right Arrow Icon
Natalie Oughourlian Name Natalie Oughourlian Last 4 digits of my ID are: 9248 ECOL 330 -- Evolution of Animal Form & Function Final Examination (200 points), December 8-10, 2007 Important! Read before you begin. 1) Exam must be typed, stapled, checked for spelling errors, and signed. Please type your name on the top of every page. 2) Print the completed exam and bring it to BSW 310 (EEB main office) by 11:00AM, Monday, Dec 10, 2007 . Penalty for late submissions is 50 points per 12 hrs delay as per syllabus. E-mail attachments and faxes will not be accepted. You can return your completed exam to the reception secretary in BSW 310 starting at 8AM Monday, Dec 10, 2007. The reception secretary will have a folder in BSW 310 labeled “ECOL 330 Final Exams”. 3) Please read, understand, and sign the following statement: “By signing below, I state that the work presented in this exam is entirely my own . I am aware that although I am allowed to use my notes or books for this exam, I will do so without consulting any other individual. I understand that I cannot copy my answers from any source, including the Internet, but rather will provide my very own synthesis of knowledge and ideas . I understand that if I found in violation of this principle I will lose the entire score for this exam and will be a subject to penalties specified by the University of Arizona Academic Integrity code. Also, I am familiar with the ECOL 330 penalties for frivolous grade appeals as stated in the syllabus.” Signature: __________________ Date: _________________ 4) Note that the amount of blank space given after each question indicates the approximate length of the answer we expect for each question. Please do not use the font size smaller than 8 points and larger than 12 points. 5) Please read the questions and other instructions closely and Good Luck!
Image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full Document Right Arrow Icon
Natalie Oughourlian Question 1: 1) Why does wounding induce formation of hair follicles de novo ? (5 pts) When a wound occurs, stem cells on the skin regenerate and repair that area. The majority of the stem cells located upon the skin’s topical layer come from the hair and its corresponding hair follicle. This stimulates the hair and stem cells and promotes regeneration of the hair and its follicle. 2) How does wounding induce formation of hair follicles de novo ? (5pt) The process of reepithelialization induces formation of hair follicles de novo . When a wound occurs, cells from the skin regenerate, thus repairing the surface and creating a new hair follicle. 3) Propose a treatment of baldness based on the mechanism in (2) that does NOT involve actual wounding. (5 pts) An increase in iron within the diet can allow the hair to increase in strength and concentration. Also, a decrease in stress could potentially decrease the amount of hair loss. Question 2: What are the two crucial features of flight feathers? (6 pts) 1) Hollow lightweight tubules.
Image of page 2
Image of page 3
This is the end of the preview. Sign up to access the rest of the document.

{[ snackBarMessage ]}

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern