The rate of transpiration, the flow of water through the stem, and leaf water potential are measured in a tree during a 24-hour period under normal environmental conditions. The results from these measurements are shown in the graphs below. (There is an image in your packet #97-100) 2002 test In this experiment, water flow up the stem could be measured in which of the following structures?
(A) Phloem
(B) Xylem
(C) Lenticels
(D) Stomata
(E) Casparian strip
Ans: (B) Xylem
You might also like to view...
A way of making multiple copies of a segment of DNA from a single template is known as ________.
Fill in the blank(s) with the appropriate word(s).
A condition called ____________________ results in individuals having both male and female sexual structures at different times in their lives
Fill in the blank(s) with correct word
Preimplantation genetic diagnosis is done:a
after in vitro fertilization on cells from the embryo. b. in the womb, before birth. c. after a woman is pregnant, but before the embryo implants. d. with the help of ultrasound. e. before fertilization on the sperm and the egg.
You are at a restaurant, and a man starts to choke on a piece of steak. What must be done?
A) Heimlich maneuver B) coughing C) a hiccup D) swallowing again