How do engineers know if they designed a successful solution to a defined problem?
Select one:

A. Their solution meets the design criteria and the constraints.
B. Their solution is built within the budget and on schedule.
C. Their solution can easily be used by most people.
D. Their solution does not use any potentially dangerous materials.

the solute can move "downhill," from regions of higher to lower concentration, relying on the specificity of the protein carrier to pass through the membrane. this process is called passive transport or facilitated diffusion, and does not require energy.

that would be called plucking : )

explanation:

''plucking, also referred to as quarrying, is a glacial phenomenon that is responsible for the erosion and transportation of individual pieces of bedrock, especially large "joint blocks". as a glacier moves down a valley, friction causes the basal ice of the glacier to melt and infiltrate joints (cracks) in the bedrock."

thats not even an aswer choice