input: OPTIONS:
- aqueous
- hydrophobic
- cytosolic
- hydrophilic Now, answer this question: Q: Water is polar and has electrically charged ends, so it is attracted to the oppositely charged end of a phospholipid molecule, which is described by what term meaning "water-loving"? A:
A:
output: hydrophilic

Q: Our bodies use what, primarily in the form of glucose, for our immediate energy needs - although they are not as energy dense or capable of long-term storage as lipids? A:

OPTIONS:
- enzymes
- electrolytes
- proteins
- carbohydrates

Answer: carbohydrates

Problem: OPTIONS:
- light waves
- mechanical waves
- sound waves
- electromagnetic waves
Q: Q: What type of waves carry energy through matter or space as vibrating electric and magnetic fields? A:
Answer: electromagnetic waves

Problem:OPTIONS:
- the seasons
- the changing orbit
- the speed of rotation
- turbulent atmosphere

Q: Why does neptune's appearance change? A:
****
A: turbulent atmosphere

Q: What are hydrocarbons that contain only single bonds between carbon atoms called? A:
OPTIONS:
- caloric hydrocarbons
- unsaturated hydrocarbons
- carcinogenic hydrocarbons
- saturated hydrocarbons
saturated hydrocarbons

Q: Approximately how many billion years ago did our solar system begin? A:
OPTIONS:
- four billion
- three billion
- nine billion
- five billion

Answer:
five billion