When scientists classify living things, they do not include viruses. this is because viruses

Answer & explanation:

Viruses are not considered to be living beings, as they do not belong to any of the five kingdoms that classify organisms, and are not made up of cells. Viruses are primarily proteinaceous particles that carry nucleic acid (DNA, RNA or both) in small quantities.

In addition, viruses have no metabolic activity, such as using energy or capturing nutrients, without infecting a living host cell, subverting their metabolism to produce more viruses.

fabric is silk wool ext. paper isnt

explanation:

u cant make fabric out of paper cause paper comes from wood while fabric comes from animals

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.