Which of the following statements about the phospholipid bilayer is TRUE? a. The tail of the phospholipid molecule is hydrophilic.
b. The head of the phospholipid is hydrophilic.
C. The head of the phospholipid is not polar.
d. The tail of the phospholipid is attracted to water.

Regarding most of the narrator’s story, which word best describes the tone?

Read each description below and determine to which stage of sleep each pertains. then click and drag each box into the appropriate category below.

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.