The nephrons are the part of the kidneys that are responsible both for the absorption and re-absorption of water within the kidneys. These nephrons have a network or chain of command that filters large molecules such as proteins and cells, within the kidneys. The nephrons need to re-absorb water in order to further convert this into materials that can be excreted by the body, like urine.
Answer:
Less air sacs or surface area = less gas exchage = less oxygen makes it to the blood
Explanation:
Well, smoking is very bad cuz it basically breaks down your alveoli (air sacs) and causes their wall to be so thin that they start to merge with each other. Merging lowers the available surface area in lung for gas exchange, thus you cannot exchage the oxygen from your lung into the blood. Even though when you breathe in you take in all the oxygen you possibly can, it does not matter cuz it won't be making it to your blood as efficiently.
The answer to this question is the letter "C" which is "about 100". Hence by the time that we have reached adulthood and we already have formed a core group of food that contains the basic 100 or about 10 basic items which account for 75 percent of our food preferences and intake and the remaining 25 percent for the food that we intake that we did not plan.
Answer:
All people can be positive role models who support your healthful decisions, or they can increase your health risk. Examples are if your friends you hang among with drink, this is a negative influence. If your friends are involved in community service, chances are good that you'll join them in such activities.
Explanation:
Answer:
D. condoms provide only minimal protection against STIs such as genital herpes, human papillomavirus ( genital warts ), and syphilis
