Possible benefits of exercise question 12 options: a) reduced cancer risk b) improved cancer risk c) irritability d) a and c

Which of these is a sexual stereotype? a) on average, males are taller than females. b) people over the age of 60 are not interested in sex. c) male hormone levels differ from those of females. d) there are more male representatives than female representatives in congress.

During the first month of development, how many layers of cells make up the embryo? a. 1 b. 2 c. 3 d. 4

What should you not do when doing abdominal workouts? a. keep your chin off your chest b. keep your head aligned with the spine c. put pressure on your neck d. all of the above