In the experiment on the ubiquity of microorganisms, plate number 1 was exposed to the air for 30+ minutes. Why would you expect microbes to grow on this plate?

Witch type of microscope is used to view very small cell components like proteins and dna?

Students in biology are studying the macromolecules of life. they used a calorimeter to determine the calories in various types of food. once the lab was completed, the students ate the left over food samples. monica commented that in just 6 or 7 "chews" of the saltine, it was gone; nothing but a sticky paste in her mouth. elaborate on what happened chemically while chewing the saltine. include the macromolecules present.

Aplant may open end close its stomata to prevent excess water loss and maintain