What was the purpose of Miller and Urey's experiment?
A. To determine where genetic information is stored in prokaryotes
B. To measure the number of biological molecules on Earth
C. To find out if archaea and eukaryotes had a common ancestor
D. To see if biological compounds could form spontaneously on early
Earth

Apart of the periodic table is shown. a portion of the sixteenth and seventeenth columns of the periodic table is shown. column 16 reads eight oxygen, 16 sulfur, and 34 selenium. column 17 reads nine flourine, 17 chlorine, and 35 bromine. which of the following elements is less reactive than the others? bromine (br) oxygen (o) selenium (se) sulfur (s)

Most animal cells membranes have proteins that pump ions out of the cell and potassium ions into the cell

What are two examples of conduction that we use everyday