Select all that apply.
if, after extensive research, the expected observations predicted by a theory fail to materialize, then the theory
is confirmed
is probably false
should be abandoned or modified
should never be retracted

B. Is probably false

C. Should be abandoned or modified

Explanation - A hypothesis is given once the question is identified and background research has been done. A hypothesis is validated by performing experiments. Prior to the experiments being performed, proper planning is done.

After the experiment is carried out, the data is noted. Once the data is noted, results are inferred. If the result fails to validate the theory then the given theory is either for or need to be abandoned or modified.

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.

answer: 4

explanation: 8