Why is the ability to culture stem cells important?
a stem cells can be stimulated to develop into any cell type.
b stem cells are easier to culture than other types of cells.
c stem cells make reproductive cloning unnecessary.
d stem cells are easier to immortalize than cancer cells.

Flock x flock y flock z total pieces of food eaten (from previous page) 147 93 60 food percentage* % % % simulated number of birds in flock for 3rd generation** * divide each flock's total pieces of food by 300, the total number of pieces of food eaten. ** multiply the food percentage for each flock by the total number of birds (30).

Which beat describes the brain stem

Isotopes of the same element have differ in their