Which has more particles, a mole of copper (Cu) atoms or a mole of neon
(Ne) atoms?
A.

Impossible to determine
B.

they both are the same
C.

copper
D.

neon

Which organisms have pharyngeal arches that develop from all three germ layers and go through the same development stages as embryos? 1.bird 2.ladybug 3.starfish 4.snake

When proteins are being produced by a cell, scientist say that the genes are question 2 options: activated turned off replicated deactivated

9. the history of life on earth is recorded in