Jill has decided that she wants to start conserving gasoline. jill is concerned about the rising price of gas, as well as how the by-products from gas engines pollute the atmosphere. what solution would jill solve this problem? a) deciding to drive her car less until the price of gas goes down. b) deciding to ride her bicycle to and from work, instead of driving. c) deciding to use premium unleaded instead of regular unleaded gasoline. d) deciding to move to a city where smog from automobiles is not a problem.

Which of these is true of the cytoplasm of an unfertilized egg? a. it is an unevenly distributed mixture of mrna, proteins, organelles, and other substances. b. it does not contain substances that are important in directing development. c. these substances are supplied by the sperm. d. it does not contain substances that are important in directing development. e. development is directed solely by the surrounding cells. f. it is a homogeneous mixture of mrna, proteins, organelles, and other substances. g. it does not contain substances that are important in directing development. h. these substances are produced by the dna of the fertilized zygote.

What kinds of molecules can pass through the cell membrane without any problem?

Which of the following is the sl unit used to measure temperature a. kilogram b. liter c. meter d. kelvin