Sickle–cell anemia is caused when a mutation results in the replacement of glutamate with valine. which type of mutation is observed here?

Are substances released into the environment that in excess amounts cause damage

Why does the skin of your finger shrink when you wash clothes for a long time?

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand