Biology, 24.12.2019 09:31, 1andonlyrob
When you are exposed to sunlight for a long time, your skin, which otherwise appears normal, gets heavily tanned. what could be the reason?
a. the genes for melanin pigmentation remain turned on and prepare more melanin than usual to protect the skin from photo-damage when it is exposed to sunlight for long time.
b. the genes for melanin pigmentation remain turned off and synthesize more melanin than usual to protect the skin from photo-damage when it exposed to sunlight for a long time.
c. the genes for melanin pigmentation are switched off to stop the synthesis of melanin.
Answers: 3
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The table below shows data for a population of fish in a pond. fish body color # of fins scales? tail shape a silver 4 yes fan b pink 4 yes flat c black 4 yes fan d orange 4 yes flat e orange 4 yes fan f silver 4 yes flat which of the above characteristics would be most in developing a classification system for the fish? a. body color and tail shape b. presence of scales and tail shape c. body color and number of fins d. number of fins and presence of scales
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When you are exposed to sunlight for a long time, your skin, which otherwise appears normal, gets he...
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