Sunil weighs 150 pounds and would like to lose a little weight by adding brisk walking to his normally sedentary life. about how long a walk would he have to take every day to lose about one pound per week?

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.

Describe the relationship between isotonic solutions, equilibrium, and water movement into and out of a cell.

What methods do scientists use to predict volcanic eruptions? select all that apply