Answer: A, C, E
Explanation: PLATO. all testable questions.
Answer:materials that impede the free flow of electrons from atom to atom and molecule to molecule.
I believe D. because all the organisms that live in a lake can be a bunch of living things that would be considered a population and not a species. I canceled out B. from the get go because, I don’t believe non living organisms can be in a population ?
Please get back to me if I’m right or wrong :)
This one is beta decay (the -1 subscript tells us that)
Because it has no <span> stereogenic carbon centres.</span>