Kelvin is pitching for his high school baseball team. he has mastered the art of the curveball, and knows just how to twist his fingers around the seam of the baseball to make the pitch work. the part of the nervous system that him feel the seams on the baseball and control his fingers to throw the curveball properly is the nervous system.

Aresearcher designed an investigation to test what effect eating different types of food would have on blood insulin levels. she selected 10 male subjects who were all 25 years of age and in good health. the experiment took place over 3 days. at 8: 00 a.m. on each day, the subjects ate a meal consisting of only 1 type of food. they had their blood insulin levels measured after consuming the meal. on day 1 they ate a high fat diet, on day 2 they ate a high protein diet, and on day 3 they ate a high sugar diel what is the independent variable in this experiment? a the age of the subjects b the blood insulin level c the type of food consumed d the time of day the meal was consumed

Which direction does the energy flow in this energy pyramid ?

What condition is kept close to its set point in osmoregulation? a. body temperature b.platelet count c.blood glucose level d.water balance