simple diffusion is an example of what kind of cellular transport?
o
a. active transport
o
b. endocytosis
o
c. passive transport
o d. osmosis

How can we use spectral lines of light coming from the superclusters to identify which is receding from earth at the slowest rate.

Ruby is conducting an investigation. an advantage of her design is that she can use a large range of variables, with that she can not be sure that one variable is the cause of another. what kind of investigation is ruby most likely conducting?

What do scientific models predict will happen to earth's temperature if current trends continue unmitigated? a. earth will heat and cool in a natural cycle b. earth will heat up and then return to an ice age c. earth will continue to warm at a rate of 0.25 c per decade d. earth will start to cool at a rate of 0.25 c per decade appex