“the complexity of life is based on cells as the building block that allows for emerging complexity.” this statement describes which of the principles of cellular theory ?

c- cells are the basic unit of life

Explanation:

According to the cell theory of Schleiden and Schwann, which was given in 1838-

Cells are considered to be the basic, structural and functional unit of all life forms.

In other words, cells are considered as the building blocks of life, which make it complex or allows the complexity (such as in case of multicellular organisms) in organisms.

Thus, option c) is the right answer.

both anaerobic and aerobic respiration use glucose (or other carbohydrates), proteins and lipids to produce atp and nadh. cell uses those energy molecules, obtained from food and   breaks them down during the chemical reactions of respiration. in anaerobic respiration, nadh is regenerated to nad+ by enzymes lactate dehydrogenase (lactate is produced, e.g. in muscle cells) or by alcohol dehydrogenase where ethanol is produced (alcohol fermentation), while in aerobic respiration, electrons from nadh are deposited in the mitochondria to regenerate nad+ (electron transport chain. anaerobic respiration produces 2 atp per molecule of glucose compared to aerobic respiration where about 38 atp molecules are produced.

d. organisms have cells with different shapes and functions.