What is the function of a cell's selectively permeable plasma membrane? a. it the cell to manufacture proteins. b. it regulates the amount of atp the cell produces. c. it regulates what materials enter and leave the cell. d. it packages and stores most of the material in a cell.

(drag each tile to the correct location.) categorize each term as something that is typical of a scientific theory, a scientific hypothesis, or both. - a tentative statement used to guide scientific investigations. - makes predictions about future events. - can be tested by many independent researchers. - based on observations of natural phenomena. - a well-established, highly reliable explanation.

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

Beth’s hygrometer is reading a temperature of 30 c and a relative humidity of 65%. the humidity in the air is?