<span>First we have to know what an "internal stimulus" is.
An "internal stimulus" is something INSIDE of us, that makes us want to do something.
Hunger is an example of an internal stimulus.
It comes from within us.
And it makes us want to eat.
So, since hunger is the stimulus,
an appropriate response would be to eat some food.
Does that make sense?</span>
Answer:
The correct answer is option c. By blocking the enzyme responsible, penicillin stops the bacteria from producing new peptidoglycan.
Explanation:
Penicillins are derived from Penicillium molds. These are a group of antibiotics, used in treating various types of bacterial infections such as urinary tract infections, respiratory tract infections, gastrointestinal infections etc.
These antibiotics also used in treating gonorrhoea, meningitis, pneumonia, syphilis, etc. These antibiotics stop the bacteria from producing new peptidoglycan that blocks the enzyme.
Blueshift of lights from distant galaxies
Answer:
1. Brain imaging such as CT scans or MRI's can provide evidence of a brain tumor.
2. Brain tumors are hard to treat because of where they are. The brain is the most delicate organ we have. The nerves, veins, blood vessels and more can make treating the tumor very difficult. Brain surgeries can be so complicated when it comes to tumors because any wrong moves and someone can be impaired for life.
Explanation:
I am going off my general knowledge here. I am not entirely sure but I am trying my best to help. Please let me know if it was close or not.