What type of transport is able to move against normal concentration gradients?
a. passive transport
b. diffusion
c. osmosis
d. dispersion
e. active transport
e
You might also like to view...
Each night you measure your height just before going to bed. When you arise each morning, you measure your height again and consistently find that you are 1 inch taller than you were the night before but only as tall as you were 24 hours ago! Is what
happens to your body in this instance best described as a physical change or a chemical change? A) chemical change because it involves your body B) physical change because it readily reverses C) chemical change because it involves changes in your bone structure D) physical change because water expands as it freezes
Which of the following is NOT a salt weathering mechanism
a. growth of crystals b. swelling of clay minerals c. thermal expansion of crystals d. adsorption of water by crystals
What is Papua New Guinea's most valuable export?
a. clothing b. workers c. minerals d. cassava e. sugar
The competence of moving air is generally limited to rock fragment that are sand sized or smaller
a. True b. False Indicate whether the statement is true or false