10 points each and brainliest for the first to answer!
word bank:
buffer, radioactive

a(n) substance has a regularly repeating arrangement of atoms.

How can scientists test their ideas about the origin of the universe if they can't physically interact with or study?

Which of the following would be a body response when stepping outside without a coat on a snowy day? a. senaceous glands. secrete more senum b. more liquid is transported by the body to the skin fir insulation c. blood vessels in the skin narrow and contract d. blood vessels in the skin expand

The chromosomal structure that limits the number of cell divisions of a cell is the the chromosomal structure that limits the number of cell divisions of a cell is the kinetochore telomere histones centromere