Which of the following is true regarding POM?
A) It is dissolved organic matter.
B) It consists of living microorganisms.
C) It is heavier than DOM.
D) It exists only in lakes.
C
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Homology and homoplasy have the same evolutionary cause
a. true b. false
Activation of translation after fertilization occurs by
a. synthesis of new mRNAs. b. uptake of amino acids into the fertilized egg. c. binding of an activator protein to the 5? untranslated region. d. elongation of poly-A tails on mRNAs.
__________, such as jellyfishes, corals, and sea anemones, are radially symmetrical.
Fill in the blank(s) with the appropriate word(s).
Select the statement that is true when comparing solutions with a pH of 6 and a pH of 8.
A. The solution with a pH of 8 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 6. B. The solution with a pH of 6 has a 100 times lower concentration of hydrogen ions than a solution with a pH of 8. C. The solution with a pH of 6 has a 100 times higher concentration of hydrogen ions than a solution with a pH of 8. D. The solution with a pH of 6 has a 2 times higher concentration of hydrogen ions than a solution with a pH of 8. E. Solutions with a pH of 8 has a 2 times lower concentration of hydrogen ions than a solution with a pH of 6.