Which of the following tissues transport water and dissolved minerals upward from the roots?
a. phloem
b. xylem
c. cortex
d. vascular cambium
e. cork cambium
Answer: b. xylem
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During the snowball earth temperatures at the equator rarely exceeded -20 degrees Celsius. Why didn't heat from the sun melt the ice?
A. The high levels of atmospheric moisture created extensive cloud cover. B. Ice reflected most of radiant energy. C. The ozone layer absorbed all the heat. D. The earth's core was cooled and kept the ice frozen.
Which trait of a vascular plant allows it to grow in the direction necessary for survival?
a. apical meristem b. gametangium c. stomata d. sporangia
All of the following statements are true concerning
phloem tissue EXCEPT that a. it transports plant-manufactured products. b. it stores organic compounds. c. it is composed of living cells. d. only some of its cells have nuclei. e. it does not transport minerals.
It is summer, and you are excited about going to your local amusement park, and specifically about riding the new roller coaster that was just built. You imagine waiting at the top of the stairs for the roller coaster to pull into the station, climbing into the car, strapping yourself into the seatbelt, and pulling down the harness. You can imagine the cars slowly chugging up to the top of the first hill, coming down on the other side, and the excitement you expect to feel as you go along for the ride. Of all of the things that you have imagined, which is an example of potential energy?
A. The roller coaster car going up the first hill B. Waiting at the top of the stairs for the roller coaster to pull into the station C. Pulling down the harness D. Climbing into the car