Answer:
A lipid is any of various organic compounds that are insoluble in water. They include fats, waxes, oils, hormones, and certain components of membranes and function as energy-storage molecules and chemical messengers.
Answer: 0.69 m/ mile.
Explanation:
The altitude gradient between two cities X and Y = 
Given: Two cities are separated by 200 miles.
City X has an altitude of 122 meters.
City Y has an altitude of 260 meters.
The altitude gradient between two cities X and Y =

Hence, the altitude gradient between the two cites = 0.69 m/ mile.
Fermentation enables cells to produce chemical energy from the breakdown of sugar
The right answer is B. cookie.
Sucrose, or sucrose, is a sugar derived from sugar beet or sugar cane. It is also known as table sugar (used in cooking and baking). Comprised of fructose and glucose, sucrose is known for its sweet and sweet taste particularly appreciated. However, and despite the pleasure it provokes, sucrose consumed in excess would represent a major danger to health.