Answer: The lipid bilayer forms a barrier to molecules because it consists of closely-packed molecules with long nonpolar hydrocarbon chains.
Explanation:
B. some species die out when environmental changes occur
Answer: Aristotle's and Linnaeus's classification systems both divided all life into two groups: plant and animal.
Answer:
D
Explanation:
Water has a fairly high specific heat, which means that enough heat must be added to it to break the hydrogen bonds between the molecules, allowing them to move freely from each other and escape the water's surface.
D. transportation accidents.
