Answer:
<em>The correct answer is C, absorption of heat in lakes and oceans</em>.
Explanation:
The hydrosphere represents all water on earth, while the exosphere represents the outer-shell of our atmosphere(pretty much space). With the sun coming from space, and the water (lakes and oceans) on earth absorbing that heat, it would create an interaction between the exosphere and hydrosphere.
Maybe say something along the lines of " parasites are complex and very harmful" and build off of that statement
Villi increases the surface area to help with absorption and digestion. Micro-villi form a brush border that vastly increases the surface area of the plasma membrane so larger amounts of nutrients can be absorbed.
10.9 billion is the predicted world population for thr year 2100