The temperature in a desert can fluctuate from being over 100° f during the day to below 40° f at night. why can the desert experience such a daily temperature change?

Cells destroy body cells infected by a virus or bacteria.

The chemical form of energy that is useable by the cell to do work

With regard to enzymes, key is to lock as a) substrate is to activation energy eliminate b) product is to substrate. c) enzyme is to active site. d) substrate is to active site.