Which of the following best describes hair?

hair is made of mostly tightly packed living cells.
hair does not control body temperature.
hair growth occurs in the hair follicle.
hair grows at 2.5mm a month.

19. a cell is viewed under a microscope and is found to have two nuclear envelopes and spindles that appear to be breaking apart. which phase of mitosis is the cell most likely in? a. metaphase b. prophase c. telophase d. anaphase

Need with these questions . need the answers in a rush for these questions are the answers i put down are correct or not? ?

In trying to determine whether dna or protein is the genetic material, hershey and chase made use of which of the following facts? a) dna contains sulfur, whereas protein does not. b) dna contains phosphorus, whereas protein does not. c) dna contains nitrogen, whereas protein does not. d) dna contains purines, whereas protein includes pyrimidines.