c.
Explanation:
I mainly think its c. from my point of view because as yoy can see they showed observations and explained certain information and they didnt conclude it as it's TRUE they said theories meaning its and Idea and something that is not fully proven happend.
The number of protons in an atoms determines the atoms identity. Electrons determine the electrical charge.
The tree I know is producer
D. Parasitism , the roundworm benefits from the relationship, but the puppy is harmed
Answer:
A. He arranged the first periodic table.
Explanation: