What does the theory of natural selection state

The theory of natural selection was proposed by Charles Darwin, which states the mechanism of biological evolution by explaining adaptation and speciation. There was five observation of the theory of natural selection.

1) The population produces more offspring than there are adults, in each generation.

2)  The population does not continue to grow in size.

3) Food and many other resources are limited.

These three observations interfere that individuals compete for resources within a population.

4) Individuals within all populations vary.

5) Many variations are heritable.

He also assumed from these two observations that individuals inherit some characteristics that give a better chance of surviving and reproducing.

These observations and interpretations helped him to propose the theory of natural selection. The theory tells the heritable characteristics in a population change over  time become more adapted in generation after generations.

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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explanation:

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