The superior and inferior vena cava return blood from the body to which chamber of the heart?
a. left atrium
b. left ventricle
c. right atrium
d. right ventricle

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

What would happen if the krill were removed from the food web

What is a group of organisms that are closely related and share similar characteristics