Heidi is shown 16 flowers, 4 of which are blue and 12 of which are red. when asked, "are there more red flowers or flowers? " heidi, a preoperational child, responds, "more red flowers." this problem demonstrates heidi's difficulty with

How will technology impact medicine in the future?

Which of these substances does not protect against invaders in the nonspecific immune response? a. saliva b. mucus c. tears d. urine

Pink fur (p) is dominant to purple fur (p) in hamsters. two heterozygous pink hamsters are crossed. what is the probability that these two parents will have an offspring with purple fur? 2/4, 1/2 or 50% 1/4 or 25% 3/4 or 75% 4/4 or 100% there is no chance for this type of offspring