Yes, it is a weak acid called the citric acid
Answer:
A. The new evidence could be accepted and the theory changed.
Explanation:
most reasonable answer
2, they line up to form a polypeptide chain this forms part of a protein molecule.
I believe you meant 'selective breeding'.
Selecitve Breeding is when say a dog breeder, chooses two prospective parents in hopes of achieveing a superior offspring or offspring with desired traits.
The answer is; 24 hours.
Scientists called the full rotation of the earth a day and divided it into 24 hours on the clock. This means from sunrise to next sunrise. They also divided the earth into latitudes that indicate time zones. When one point on earth rotates and return to the same position in space, it has lapsed 24 hours.