1.) The process the statement is describing is called distillation. The correct answer is B.
2.) The process of fractionation is based on boiling points. The correct answer is B.
3.) Crude oil is separated into different substances such as gasoline, petroleum, diesel fuel, and propane by fractionation. The correct answer is B.
4.) The process that is used to separate the chemical from a blood or urine sample is called chromatography. The correct answer is D.
5.)Osmosis involves separating a solution by moving liquids across a selectively permeable membrane. The correct answer is B.
The statement which is false about the intergumentary system is option D. "Keratin is the pigment responsible for skin color."
Even though the skin color of human beings is affected y different substances, the pigment melanin is responsible for it. Melanin is produced within the skin in cells known as melanocytes and it determines of the skin color of darker-skinned humans.
For instance, the skin color of those who have light skin is determined primary by the bluish-white connective tissue placed beneath the dermis and by the hemoglobin which circulates in the veins of the dermis.
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B. Shifting their growing range towards the equator
