First question: Which statement about natural selection is incorrect?

1.more offspring are produced than can survive in the environment
2.there is genetic variation in population of animals
3. Organisms with beneficial adaptations will be able to pass adaptation to their offspring

Second question:what is variation?

1. Similarities among individuals in a population
2. Differences among individuals in a population
3.variation does not exist
4.variation means individuals are identical to each other

Question 1:  A, that is overproduction. Question 2: B

Explanation:

the answer is golgi apparatus

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.