Phenylthiourea, PTC, can be Taste it by some individuals but not by others. Students tested everyone in third grade to see who could taste PTC 100 students total. The ability to taste PTC is a dominant trait. 10 people in the great were unable to taste PTC

Which of the following occurs after a natural or unnatural disturbance in an ecosystem

Matthew decided he wanted to hike up mount everest. on his way to the top, it began to snow and the temperature dropped to -10°f. matthew forgot to wear a heavy jacket so his body began to shiver beyond control. in this case, matthew's body shivering is the to a drop in temperature. * 0 points reflex stimuli responce environmental facto

Answers to mastering biology drag the labels to their appropriate locations to complete the punnett squares for morgan's reciprocal cross. drag blue labels onto the blue targets to indicate the genotypes of the parents and offspring. drag pink labels onto the pink targets to indicate the genetic makeup of the gametes (sperm and egg). labels can be used once, more than once, or not at all. hints