Which is an example of primary succession?

An oak growing in abandoned field

Ferns growing in the forest

A new cactus growing next to an old cactus

Lichens growing on a cooled level rock

An oak growing in an abandoned field.

Explanation:

This is the correct answer because primary succession is when plants and animals are the first to colonize in a lifeless habitat, and an abandoned field is a lifeless habitat since its been abandoned.

your answer is rna to the question.

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.