All of the following structures are unique to plant cells except
a. cell walls.
b. chloroplasts.
c. large vacuoles.
d. mitochondria.

Moving down the ramp from 6 meters to

The carrier molecules of the electron transport system are located in the

Which genetic disorders, caused by an extra x chromosome (xxy), is characterized by a lack of testicular development in males, effeminate features, possible mental impairment, and a thin stature?