
To explain:
It doesn’t hurt when a person has a haircut.
Introduction:
To define mammal hair is considered as a specific character of them. Hair is made up of keratin protein and it also contains melanin pigment. Hair is also considered as a part of the integumentary system.

Explanation of Solution
Hair develops from epithelial cells. Hair cells grow from hair follicles which are the narrow cavities inside a dermis. Cells present at the base of hair follicles divide and push cells away from the follicle which results in the growth of hair. Sebaceous or oil glands are associated with the hair follicles. Skin and hair are lubricated by sebaceous glands. Cells that are divided and are pushed away from follicles become dead and didn’t have any nerve endings which can send stimulus to the brain that’s why it doesn’t hurt when a person has a haircut.
Hair has dead cells and doesn’t have any nerve ending which can send stimulus to the brain that’s why it doesn’t hurt when a person has a haircut.
Chapter 32 Solutions
Biology Illinois Edition (Glencoe Science)
Additional Science Textbook Solutions
Anatomy & Physiology (6th Edition)
Genetic Analysis: An Integrated Approach (3rd Edition)
Microbiology: An Introduction
Chemistry
Organic Chemistry (8th Edition)
Chemistry: An Introduction to General, Organic, and Biological Chemistry (13th Edition)
- Awnser these Discussion Questions Answer these discussion questions and submit them as part of your lab report. Part A: The Effect of Temperature on Enzyme Activity Graph the volume of oxygen produced against the temperature of the solution. How is the oxygen production in 30 seconds related to the rate of the reaction? At what temperature is the rate of reaction the highest? Lowest? Explain. Why might the enzyme activity decrease at very high temperatures? Why might a high fever be dangerous to humans? What is the optimal temperature for enzymes in the human body? Part B: The Effect of pH on Enzyme Activity Graph the volume of oxygen produced against the pH of the solution. At what pH is the rate of reaction the highest? Lowest? Explain. Why does changing the pH affect the enzyme activity? Research the enzyme catalase. What is its function in the human body? What is the optimal pH for the following enzymes found in the human body? Explain. (catalase, lipase (in your stomach),…arrow_forwardAnwser these Discussion Questions: Part One Why were the plants kept in the dark prior to the experiment? Why is this important? Why is it important to boil the leaf? Explain why it was necessary to use boiling alcohol? What is the purpose of the iodine? Part Two What was the purpose of keeping the leaf in the dark and then covering it with a cardboard cut-out? What conclusions can you draw from this part of the lab? Part Three 7. In this experiment what was the purpose of adding the soda lime? 8. Why was a sealed bag placed around each plant? 9. What happened in the control plants? 10. What was the result on photosynthesis? Part Four 11. Why was a variegated leaf used in this experiment? !2. What conclusions can you draw about starch production in a variegated leaf?arrow_forwardHow did the color differences between the two bacterial species you used in this experiment help you determine if the streak plate method you performed was successful?arrow_forward
- series of two-point crosses were carried out among six loci (a, b, c, d, e and f), producing the following recombination frequencies. According to the data below, the genes can be placed into how many different linkage groups? Loci a and b Percent Recombination 50 a and c 14 a and d 10 a and e 50 a and f 50 b and c 50 b and d 50 b and e 35 b and f 20 c and d 5 c and e 50 c and f 50 d and e 50 d and f 50 18 e and f Selected Answer: n6 Draw genetic maps for the linkage groups for the data in question #5. Please use the format given below to indicate the genetic distances. Z e.g. Linkage group 1=P____5 mu__Q____12 mu R 38 mu 5 Linkage group 2-X_____3 mu__Y_4 mu sanightarrow_forwardWhat settings would being able to isolate individual bacteria colonies from a mixed bacterial culture be useful?arrow_forwardCan I get a handwritten answer please. I'm having a hard time understanding this process. Thanksarrow_forward
- Biology How many grams of sucrose would you add to 100mL of water to make a 100 mL of 5% (w/v) sucrosesolution?arrow_forwardWhich marker does this DNA 5ʹ AATTGGCAATTGGCAATTGGCAATTGGCAATTGGCAATTGGCAATTGGC 3ʹ show?arrow_forwardThe Z value of LOD for two genes is 4, what does it mean for linkage and inheritance?arrow_forward
- Human Anatomy & Physiology (11th Edition)BiologyISBN:9780134580999Author:Elaine N. Marieb, Katja N. HoehnPublisher:PEARSONBiology 2eBiologyISBN:9781947172517Author:Matthew Douglas, Jung Choi, Mary Ann ClarkPublisher:OpenStaxAnatomy & PhysiologyBiologyISBN:9781259398629Author:McKinley, Michael P., O'loughlin, Valerie Dean, Bidle, Theresa StouterPublisher:Mcgraw Hill Education,
- Molecular Biology of the Cell (Sixth Edition)BiologyISBN:9780815344322Author:Bruce Alberts, Alexander D. Johnson, Julian Lewis, David Morgan, Martin Raff, Keith Roberts, Peter WalterPublisher:W. W. Norton & CompanyLaboratory Manual For Human Anatomy & PhysiologyBiologyISBN:9781260159363Author:Martin, Terry R., Prentice-craver, CynthiaPublisher:McGraw-Hill Publishing Co.Inquiry Into Life (16th Edition)BiologyISBN:9781260231700Author:Sylvia S. Mader, Michael WindelspechtPublisher:McGraw Hill Education





