Examine the diagram. A diagram with two bubbles and two arrows in the middle pointing opposite ways. The left bubble says, "The environment affects human behavior. Based on this diagram, which is the best explanation of why environmental problems are difficult to solve? The environmental problems are not caused by people. The environment is too complex for people to understand it. People change the environment in different ways, which causes human behavior to change. Humans are part of the environment, so they cannot have a large impact on the environment.

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.

the answer is cell division : )

protein makes up the building blocks of organs, muscles, skin, hormones and pretty much everything that matters in your body.

some choices are:

peanut butter

seeds

eggs

yogurt

meats

fish

so pretty much meat, dairy, nuts, and grains.

i think the answer is composed of atoms