Answer:
protons its the flow of electricity but does not controll it
Answer:
I'm not too sure specifically for 9th grade. Though I am in 12th grade right now and currently using the Edrolo biology textbook which is solely based on the key dot points/skills for the entire subject. They also include past exam questions or similar exam style questions both multiple choice and short answer for each topic and chapter within the book.
Explanation:
I believe the answer is C
I read something in my textbook about all living organisms have history of the same genetic info =D
