Answer: Digesting food is a chemical change.
Explanation:
Chemical changes cannot be undone so digesting the food is considered a chemical change.
Answer:
Explanation: If the high tide is higher than usual, and the same thing for low tides, it is a spring tide, because it is strong. Two weeks later, he observed a neap tide, because there is not much difference. The tides get weaker and stronger because the moon changes positions. The gravitational pull is affected differently. The Earth also changes positions, so it also has an effect, but the moon has the most powerful.
Answer:
one of two or more alternative forms of a gene that arise by mutation and are found at the same place on a chromosome.
Explanation:
