This glass of lemonade is sitting in the hot summer sun. As time passes, in which direction will heat transfer take place? A.
ice → lemonade
B.
lemonade → air
C.
air → lemonade
D.
ice → straw
E.
ice → air

c

Explanation:

cell differentiation  is how generic embryonic  cells  become specialized  cells. this occurs  through a process called gene expression. gene expression is the specific combination of genes that are turned on or off (expressed or repressed), and this is what dictates how a  cell  functions.

explanation:

no. dot product   =0 when vecs at right angles