True! Earth is beginning to become very overcrowded and combined with the amount of people of the planet and the carelessness that they all have for it, the earth is slowly beginning to show it's age. Of course, no one will act on this opinion, because it is quite illegal to just kill people, but it is true!
Homologous
The fins of fishes and flipper of a whale are homologous structures since they have different structure but similar structure
Answer:
there is the answer to your question
Answer: A
Explanation: The elements in the compounds get rearranged. You can't change the amount of hydrogen, oxygen, or carbon the product contains