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 All of the following changes would be likely to decrease the rate of transpiration at 8 A.M. EXCEPT
(A) causing the stomata to close
(B) increasing the humidity of the atmosphere
(C) increasing the water potential of the atmosphere
(D) increasing the water potential of the soil
(E) placing the plant in total darkness
Answer: (D) increasing the water potential of the soil
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You observe a tissue with one free surface and several cell layers attached to a basal lamina. This is an example of
____.
a. connective tissue only b. epithelial tissue only c. muscle tissue only d. nervous tissue only e. connective and muscle tissue
Which structure forms the main stem of Chara?
a. rhizoids b. stipulodes c. thallus d. cortex
Ecologists using super computers to create and run complex models of ecosystems are using which type of modeling?
a. conceptual modeling b. analytical modeling c. simulation modeling d. individual-based modeling
Each of the following organisms would be considered a microbe EXCEPT
A) yeast. B) protozoan. C) bacterium. D) mushroom. E) virus.