Explain why cells are considered the basic unit of living things

Of seawater increases with decrease in the temperature. therefore, the cold water sinks to the deeper layers at the bottom

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.

If jane has the blood type ab and marries john who has type o blood what are the possible phenotypes of their first kid?