Which is true in a covalent bond? a. the bond forms between ions. b. the bond forms when electrons are shared. c. the bond is caused by van der waals forces. d. the bond holds atoms weakly.

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 terms describes being out of water after being submerged

What is the main function of the central vacuole in a plant cell? a. absorbs energy from the sun to produce food b. holds water and maintains turgor pressure c. breaks down molecules to release energy d. contains the cell's genetic material