Match the following events with the appropriate stage/ process of cell division: centrosome movement homologous chromosomes separate dna exchange chromatids separate
a. prophase i
b. anaphase i
c. crossing over
d. anaphase ii
e. prophase ii
f. telophase i

Hydrogen has only one electron in its only (and outer) electron shell. if a hydrogen atom were to absorb a small amount of energy, where would bohr say the electron would go? a. fly off the atom b. nowhere, it would just speed up. c. spiral inwards towards the nucleus d. move up to another shell that would form