JJ Thomson added to Daltons theory by discovering the electron. He explained that the atom is a positive ball with negative electrons.
Answer:
THE MATEMÁTICAS 163 por eso
Answer:
C
Explanation:
I've done this test before
Answer:
Biological species.
Explanation:
Various concept like morphology species concept, ecological species concept was introduced by the scientists to explain the biological species. The biological species concept is accepted today.
The biological species concept explains that the group of interbreeding population that has the ability to reproductively isolated from the other such group.
Thus, the correct answer is option (c).
The answer is B. For example ex-boyfriend or ex-wife