How are supernovae involved in new planet formation? They are the death of massive stars.

They provide matter and energy that fuel new planet formation.

They consume all the nearby nuclear fuel and allow new planets to form.

They are not involved in new planet formation.

wheres the answers ?

answer; i believe that the correct answer is(d) nondisjunction during meiosis;

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.

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