We get wood from trees. tree - wood - what word best fills in the blank and describes what makes up wood? a) atoms b) cells c) plants d) toothpicks

B because it’s talking about the tree itself. Saying that it’s plants would divert it to a different plant. The cells of the wood is what makes the tree and is relevant to the question

A) 4 amusingb)alpha particle is a helium nucleus. it contains 2 protons and 2 neutrons.c)alpha particle has charge of +2.

If the experiment was perfomed more then once and you get the same results