Passive transport is called passive because it occurs WITHOUT a. the cell membrane
b. light
c. the cell wall
d. energy

Once a woman attains puberty, her overuse mature and release one egg per ovarian cycle. which hormone stimulates this event?

Astudent observes a star from two positions of earth in its orbit, in summer and winter, and measures the change in the position of the star. which of these can be best calculated by this method?

Isolated volcanic peaks on the ocean floor are