Darwin observed that members of a population vary in their functional, physical, and behavioral characteristics. there is a constant struggle for survival of organisms. organisms in a normal population differ in reproductive success. All of the choices are correct. None of the choices are correct.

All of the choices are correct

Explanation:

Darwin observed that members of a population produced more offsprings which competed for depleting resources among themselves. Genetic varieties among organisms caused some organisms to be better adapted to survive as compared to other organisms in a population. These organisms were favoured by natural selection and they were able to reproduce and pass on their characteristics to their offsprings.  The organisms with better characteristics has more reproductive success as compared to other organisms of the species.

which are post-impressionist paintings? check all that apply?

explanation:

post-impressionism is a predominantly french art movement that developed roughly between 1886 and 1905, from the last impressionist exhibition to the birth of fauvism. post-impressionism emerged as a reaction against impressionists' concern for the naturalistic depiction of light and color.

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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.