According to Nina jablonski's research dark skin is adaptive because it protects from __________ at low latitudes. Light skin is a derived trait at high latitudes to allow for __________ production.
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According to Nina jablonski's research dark skin is adaptive because it protects from __________ at low latitudes. Light skin is a derived trait at high latitudes to allow for __________ production.
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- The human faces is yellow in colour due to the presence of a pigment called___?Use the graph to answer the question. People native to which of the following countries have the darkest skin: Australia, China, or Ireland?According to the video “The Biology of Skin Color”, why is lighter skin needed in areas closer to the north and south poles where UV rays are weaker? A. Individuals with a lot of melanin would get too much UV ray penetration in their skin and they wouldn't be able to synthesize vitamin D. B. Lighter skin is not necessary in the north and south poles. C. Individuals with a lot of melanin wouldn't get enough UV ray penetration in their skin to synthesize vitamin B. D. Individuals with a lot of melanin wouldn't get enough UV ray penetration in their skin to synthesize vitamin D.
- When people move to hot climates, their bodies increase sweat production to manage the heat-induced body stress. This increase in sweat production is passed on to their offspring. In other words, their offspring would display high sweat production as a result of descending from high sweat-producing parents. Question 3 a. True b. FalseSuppose Inverness was considering offering a special add-on to its standard Dental insurance. For an additional 1 dollar a month a family could be fully covered for professional teeth whitening, something that normally would cost five thousand dollars a treatment. The whitening procedure would erase any stains that build up over time as a result of drinking too much coffee. Would this benefit create an adverse selection and/or moral hazard problem? If so explain why, and how the benefit could be better designed to address these issues.Use the sources to answer the following question. Source A Black ladybugs with red spots are referred to as melanic, and red ladybugs with black spots are referred to as nonmelanic. Because dark objects absorb more heat, the melanic ladybugs are better adapted to keep warm at lower temperatures. Paul Brakefield studied a population of ladybugs in Tilburg, the Netherlands between 1980 and 2004. As the average temperature in the area increased over a period of twenty four years, he noticed that the percentage of melanic ladybugs in the population decreased. Source B - image Source C - image Part A: How genetic variation in the ladybug population increased the survival probability of some individuals and changed the population over time. Include evidence and reasoning.
- PLEASE NOTE THIS IS A GROUPING OF ONE TOTAL QUESTION NOT INDIVIDUAL QUESTIONS AS A PREVIOUS TUTOR WOULD ONLY ANSWER ONE AND NOT THE GROUPING. B) What is one important function of melanin? A. Resets the diurnal biological clock B. Increases the amount of blood vessels C. Causes the skin to become cooler D. Absorbs harmful radiation E. Strengthens the skin or eyes C) Most of the cells of the epidermis are ________________. A. fibroblasts B. keratinocytes C. macrophages D. Langerhans cells D) The epidermis is nourished by diffusion from capillaries in the ___________. A. papillary layer of the dermis B. hypodermis C. epidermis D. reticular layer of the dermis E) Cell division occurs in which layer of the epidermis? A. Stratum lucidum B. Stratum corneum C. Stratum basale D. Stratum granulosum F) Which of the following is NOT a component of the epidermis thin skin? A.…You are walking to school on a December morning. There is a thin layer of snow on the grass. As you walk, you notice two distinct sets of paw prints left behind by some animals. One set is long and almost triangular shaped with large gaps in between pairs of prints. The other prints are round with four toes and they stagger diagonally. There are tufts of fur near the paw prints, some pieces are reddish orange, and some are a smoky brown color, possibly gray. By the time you get to school, you only see on the set of round paw prints and a few pieces of reddish-orange fur. The other prints stopped appearing suddenly. Based on this scenario, what kind of relationship do you think the two animals have? Mutualistic Commensalistic Predator-Prey AmmenalisticUnique traits that allow living things to survive easier are called what
- Give only typing answer with explanation and conclusion Identify the role of natural selection in the evolution of skin color. What role does folate and vitamin D have? How do they differ? How can someone maximize folate and vitamin D levels? Does natural selection still relate to skin color in human populations? If so, how would you expect human skin color to change in human populations in the future?Why is lighter skin needed in areas closer to the north and south poles where UV rays are weaker? A. Individuals with a lot of melanin wouldn't get enough UV ray penetration in their skin to synthesize vitamin B. B. Lighter skin is not necessary in the north and south poles. C. Individuals with a lot of melanin would get too much UV ray penetration in their skin and they wouldn't be able to synthesize vitamin D. D. Individuals with a lot of melanin wouldn't get enough UV ray penetration in their skin to synthesize vitamin D.Which of the following decreases the evolutionary fitness in people with darker skin color? Assume there is no dietary supplementation. A_ Low folate in areas with high UV B_ Low folate in areas with low UV C_Low vitamin D in areas with high UV D_Low vitamin D in areas with low UV
