According to the video “The Biology of Skin Color”, why is UVB critical for humans? A. It helps our bodies break down Vitamin D, which can be toxic to our bodies. B. It helps our bodies synthesize Vitamin C, which we need in order to absorb calcium in our diet. C. UVB is not critical or useful for us. D. It helps our bodies synthesize Vitamin D, which we need in order to absorb calcium in our diet.
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According to the video “The Biology of Skin Color”, why is UVB critical for humans?
A. It helps our bodies break down Vitamin D, which can be toxic to our bodies.
B. It helps our bodies synthesize Vitamin C, which we need in order to absorb calcium in our diet.
C. UVB is not critical or useful for us.
D. It helps our bodies synthesize Vitamin D, which we need in order to absorb calcium in our diet.
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- According to the video “The Biology of Skin Color”, how does UV exposure vary throughout the world? A. The UV rays are the same at the equator and the earth's poles B. There are higher UV rays near the equator and lower UV rays towards the north and south poles C. UV rays don't vary across the globe D. There are lower UV rays near the equator and higher UV rays towards the north and south polesAccording to the video “The Biology of Skin Color”, what is the pigment in our skin that reflects or absorbs light? A. Magnesium B. Melatonin C. Melanin D. ChlorophyllAccording to the video “The Biology of Skin Color”, why are UV rays dangerous to our bodies? What can they do? A. UV rays can mutate the DNA in our skin cells B. UV rays can cause skin cancer C. UV rays can destroy folate D. All of the above
- According to the video “The Biology of Skin Color”, why do humans need calcium? A. To build strong and large brains. B. To build strong bones and have a healthy immune system. C. To help us digest dairy. D. Humans don't need calcium.What is one important function of melanin? A. Causes the skin to become cooler B. Absorbs harmful radiation C. Strengthens the skin or eyes D. Resets the diurnal biological clock E. Increases the amount of blood vesselsOur skin contains melanocytes, which produce melanin that protects the cells from sun damage. If darker- skinned people have more melanin does this mean that they do not have to protect their skin from the sun? Explain your answer.
- Which statement is true about a tan and tanning? A. Sunning for the purpose of tanning produces healthier skin. B. A tan indicates sun damage to the skin. C. Tans last even if the skin is not exposed to the sun for months. D. Tanning promotes skin with a more youthful appearance. E. B and CAccording to the video “The Biology of Skin Color”, what does folate deficiency in males cause? A. Cardiovascular Disease B. High sperm production C. Blindness D. Low sperm productionUse logic to deduce the answer to this question. Given what you know about skin color and skin cancer, the highest rate of skin cancer on Earth occurs among (a) blacks in tropical Africa, (b) scientists in research stations in Antarctica, (c) whites in northern Australia, (d) Norwegians in the United States, (e) blacks in the United States.
- Darkly pigmented skin is advantageous in the tropics because it a) Protects skin from frostbite b) Allows maximum exposure to UV radiation c) Helps prevent rickets d) Promotes vitamin D synthesis e) Protects skin from skin cancer from overexposure to ultraviolet radiationRegarding the short film, "Biology of Skin Color" (in 250 to 300 words) - What is the relationship between melanin, geography, folate, and vitamin D? Provide a personal reflection on something that surprised you or something new you learned on this topic.Fill in the blank. The advantages of infrared waves are...? A. that they harden dental fillings and make vitamin D in the body. B. that they provide warmth and read information stored on computer disks. C. that they inspect packaged products and set broken bones. D. that they sterilized medical equipment and kill cancer cells.
