Help.. The general pathway of blood in the body is
a. heart → lungs → body → heart
b. lungs → heart → lungs → body
c. body → lungs → heart → body
d. heart → lungs → heart → body

What are the most explosive events that occur on the sun? umbras solar flares solar winds prominences

Amylase becomes denatured at a temperature of 80°c. during an experiment to study the effect of varyingtemperature on enzyme activity, amylase’s reactivity with starch was measured at body temperature (37°c), andthen again at an increased temperature of 42°c. how would this increase in temperature affect the experiment

Which statement describes a way in which the digestive and excretory systems work together? a. the nephrons absorb nutrients from food going to the large intestine. b. the excretory system balances blood gases in the small intestine. c. the intestinal villi filter blood and send wastes to the bladder. d. the excretory system balances the salts and water obtained from digested food