Proteins which form channels may be utilized to enable the transport of water and other hydrophilic molecules; these channels are often gated to regulate transport rate. In facilitated transport, hydrophilic molecules bind to a "carrier" protein; this is a form of passive transport
Answer:
D. Microscopic organisms break down the apple and release its material into the soil and air.
Explanation:
Without microscopic organisms today, everything that has died or fallen will still remain on the ground. Fungi, bacteria, and etc. play an essential role in the Earth's ecosystem by breaking down organic material.
Answer: D. Whole-Wheat Pasta
The Grand Canyon is a Canyon that exist where an ancient river once flowed. The hydrosphere (all of water on earths surface.) Slowly eroded away at the rock of the grand canyon until a Canyon was formed this water evaporated into the atmosphere then percerpertated back down creating a cycle that ended with the formation of the grand canyon.