Which of the following statements is false?
A) The ground tissue system of a leaf is called the mesophyll.
B) Each vein in a leaf is composed of either xylem or phloem, but not both.
C) The veins in a leaf are continuous with the veins of a stem.
D) The pith of a stem is often important in food storage.
E) Tissues that are neither dermal nor vascular are known as the ground tissue system.

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.