Answer:C
Explanation:When the ball it up high it holds gravitational potential energy, as it rolls down it gain kinetic energy which is then turned into heat energy due to friction
Answer:
Agricultural revolution, start of Neolithic era, maybe 12000 yrs ago
Explanation:
Answer:
The correct answer is cholesterol is nonpolar.
Explanation:
Cholesterol is a complex lipid is synthesized from acetyl CoA.cholesterol is an important constituent of plasma membrane.
Cholesterol is non polar in nature.As a result cholesterol is repelled by water and can be found between the layers of the phospholipid in the plasma membrane.
As cholesterol is non polar it is also hydrophobic in nature.
Answer:
B.secrete hormones directly into the bloodstream