How many molecules of Carbon Dioxide are required to run photosynthesis?
a. 4
b. 5
c. 2
d. 6
e. 1
d
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RNA is believed to have preceded DNA because _____.
A. DNA contains thymine and RNA does not. B. DNA is double stranded and requires more components. C. DNA can store more protein-building instructions in less space. D. RNA can also function as an enzyme. E. RNA cannot replicate itself.
You've made a hot drink by dissolving a teaspoon of instant coffee and a teaspoon of sugar in a cup of hot water. Which of the following statements is true?
A) You've just prepared an aqueous solution. B) The water is the solute portion of the drink. C) The instant coffee is basic and the water is acidic so they mix well. D) The instant coffee and sugar dissolve because they have no charged regions to repel the partial positive and partial negative regions of the water molecules.
Explain the differences between a primary succession and a secondary succession. Give an example of each type of succession
What will be an ideal response?
Facultative anaerobes __________.
Fill in the blank(s) with the appropriate word(s).