<span>useful substances must be selectively reabsorbed
Filtration of blood by kidney only selected based on the molecule size. That means all small molecule will enter the kidney, doesn't matter whether it is toxic or useful.
But kidney has another mechanism such as reabsorption. In </span>reabsorption, some specific useful molecule(like glucose) will be absorbed back.
Answer:
too much CO2 is toxic for humans to inhale. we rely on plants to absorb CO2 and produce O2. If they was a sudden extinction of all plants on earth, this would lead to a rise of CO2 which would reduce O2 air quality. (not good at all)
Explanation:
analisa mengenai dampak lingkungan
It is called Accommodation
This is true. The nervous system produces chemicals that affect our body at a rapid pace and the effects are usually short term and are designed for situations that are out of the ordinary. The endocrine system works slower and in the long run and there's not that much rapid effect that happens in stressful situations that the endocrine system solves or resolves. The hormones produced by the endocrine system are a constant that keeps being produced and they balance our body functions.