Which of the following best describes a feature of the cell membrane's structure that allows molecules such as oxygen and hydrocarbons to easily cross the membrane and enter the cell?
a. the bilayer contains mostly polar molecules.
b. the interior of the lipid bilayer is hydrophobic.
c. the bilayer is embedded with transport proteins.
d. the exterior of the lipid bilayer is unsaturated.

Which best describes a rhinovirus? o a. a virus that causes a common cold o b. a protective shell around a virus o c. a tube the comes off a virus o d. a piece of dna transferred by a virus

Benito is doing research on the effects of florida's elevation on its climate. his notes include the following: 1. the average elevation of florida is 30 m above sea level. 2. the highest point in florida is britton hill, which is 105 m above sea level. 3. the change in temperature from 0 m to 1,000 m is 7 °c. what can benito conclude about the effects of florida's elevation on its climate? a.) florida typically experiences cold temperatures and temperature changes within a narrow range. b.) florida typically experiences cold temperatures and temperature changes within a broad range. c.) florida typically experiences warm temperatures and temperature changes within a narrow range. d.) florida typically experiences warm temperatures and temperature changes within a broad range.

Long-period comets come from the oort cloud particles in earth’s atmosphere material from the asteroid belt the kuiper belt