Lichen are made up of algae and fungi living together. In this relationship, the alga is the produce and food source for the fungus and the fungus provides structure and physical support for the alga
This is an example of which symbiotic relationship?
A) parasitism
B) mutualism
C) commensalism
D) amensalism
E) synnecrosis
B
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A climate is classified as "dry" if it receives less than 30 centimeters of rain annually, on average
Indicate whether the statement is true or false
The ice ages are caused by:
a. the drift of the continents. b. the eruption of supervolcanoes. c. the sunspot cycle. d. minor changes in Earth's rotation and orbit. e. variations in solar output.
A truly educated person is knowledgeable about
A. science. B. religion. C. the arts. D. all of the above
Which of the following best matches the description?The office of the President of the United States.
A. World Bank B. Environmental Quality Amendment C. executive branch D. legislative branch E. Earth Day F. wise-use G. judicial branch H. command and control I. NGO J. policy