Abacterial population that has been growing for 15 generations began as a single cell. how many cells are present now?

What must be true for natural selection to heppen

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

Why does it matter if osmosis is put into a “scab” or a “nosebleed? ” where would that leave him?