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The human faces is yellow in colour due to the presence of a pigment called___?
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- Hair and fingernails are similar because ____Upper most layer of skin is called ___?What is the only statement that correctly identifies the ability of different wavelengths of UV light to penetrate the human skin? Note: UVA is the longest wavelength (least energy), and UVC is the shortest wavelength (most energy). If you've studied the electromagnetic spectrum you may remember that wavelength and energy have an inverse relationship. We'll talk more about this later in the course. Group of answer choices A- UVA light penetrates only as deep as the epidermis, which is where it has its effect B-UVB light penetrates only as deep as the epidermis, which is where it has its effect C-UVC light penetrates only as deep as the epidermis, which is where it has its effect
- The shape of the external ear is maintained by ______ adipose tissue fibrocartilage elastic cartilage hyaline cartilagePart II - Eye Coloration Puzzled, Alexia and Evan used the internet to research what gives the eye its color. "Eye color" refers to the color of the iris of the eye. Melanin is a dark pigment produced by cells in the iris that gives the eye its color. What determines the color of the eye is a combination of the amount, location, and qualities (e.g., different types) of the melanin present in the iris (Sturm & Larsson, 2009). The iris has a front layer and a back layer. The space in between them, called the stroma, is filled with various proteins, including white collagen fibers. For almost all eye colors, there is a lot of melanin on the back layer of the iris (Sturm & Larsson, 2009). Where people differ is in the melanin in the front layer of the iris. A lot of melanin in the front of the iris makes the eye look brown because, as light hits the front of the iris, the pigments absorb the light. Blue irises have less melanin in the front layer, so light can go through it. As light…According to your textbook, the trend related to lighter skin pigmentation further from the equator follows a principle called _____. Group of answer choices Bergmann's Rule Allen's Rule Gloger's Rule Blumenbach's Rule
- The mechanism by which a functional MC1R protein affects skin color is it ______ directly stimulates pheomelanin production directly stimulates eumelanin production responds to melanocyte stimulating hormone to increase pheomelanin production responds to melanocyte stimulating hormone to increase eumelanin productionWhy is it important to wear masks?How can my one's exposure to sun throughout one's life contribute to a possible melanoma(Hint:think about what happens to the DNA of skin cells)
- Flamingos are not born pink, but through their diet absorb pigments that get deposited into their feathers which turns them from white to pink. Similarly, our own diet can effect the color of our skin if we were to eat high concentrations of food with absorbable pigments. For instance, if we ate a large amount of carrots and summer squash that contain beta-carotene, what color would you expect the skin to take on?' Yellow-green orange-green Yellow-orange RedThis ABC video follows the story of a pair of fraternal African-American twins, one of whom is albino.Watch this video (http://openstaxcollege.org/l/albino) to learn about the challenges these children and their family face. Which ethnicities do you think are exempt from the possibility of albinism?A farmer is using his tractor in the farm one sunny afternoon. An hour later, he noticed that the mud in the area he’s working on is off in terms of color – seems like a blood mixed with the mud. He didn’t mind it and continued working. Another hour after, he fixed his things, and washed off his feet and he noticed that he sliced off his left foot deep and might potentially be amputated. He felt no pain while he was working until, he cleaned himself. Which of the following would best explain this picture? a. The farmer is taking morphine that’s why he did not feel the pain caused by his tractor. b. Endorphins are activated thus interfered with the pain messages in the spinal cord and the brain. c. Analgesics will be prescribed to the farmer to eliminate the pain that he feels. d. None of the explanations given are correct because it was an accident.
