How has human use of trees had both a positive and negative impact?

positive- many goods are produced by trees

negative- cutting down trees causes a disbalance in the carbon cycle and makes the atmosphere's oxygen levels decline

Explanation:

Student answers will vary. Humans have impacted the biodiversity of trees both negatively and positively. Urbanization has led to the decrease of biodiversity through deforestation. Pollution has also decreased biodiversity. Genetic engineering has led to an increase in biodiversity. Cutting down entire regions of trees for product use is another negative impact of human activity on trees. Humans cultivate trees for harvesting fruit, nuts, and other products as well, which increases the populations of those specific trees

Explanation:

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.

they absorb it i think

not sure

you