It cannot be skeletal or muscular system as those do not protect from bacteria and sunlight. neitger does the nervous system, so it is the integumentary system.
I believe this represents the goal of not doubting anything in science. Paleontologists found a species that was previously known to be extinct, which means that there could be many more discoveries like this that could change history as we know it. I bet this taught scientists to not have a fixed mindset when it comes to searching for more answers on a topic.
I hope I helped!
Answer:
1. If we remain one people under an efficient government, the period is not far off when we may defy material injury from external annoyance;
2. But that jealousy to be useful must be impartial; else it becomes the instrument of the very influence to be avoided, instead of a defense against it.
3. Real patriots who may resist the intrigues of the favorite are liable to become suspected and odious,
Explanation:
Answer to number one - to predict that the U.S. is uniquely situated to resist foreign invasions.
Answer to number two - to warn that the U.S. must guard itself against all foreign interference.
Im not sire about the answer to number three but it isn't ... " to advise that the U.S. favor only those foreign powers that show themselves friendly toward our best interests''
Why doesn’t this let me respond?
B , it’s the direction of the rotation in the middle
