Respiration in birds a) is inefficient because air only moves in one direction b)is highly efficient and ensures that air moves in multiple directions c) is highly efficient and ensures that air only moves in one direction d) is inefficient because of how air first enters into the body

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