Hydrological alterations threaten freshwater biodiversity in many ways. Select the exception
a. changes in flow rates
b. changes in life histories of aquatic species
c. changes in connectivity
d. changes in habitat that facilitate the introduction and success of non-native species
e. changes in salinity
E
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Due to the directionality of polymer synthesis, proteins have distinct ________ and ________ ends.
Fill in the blank(s) with the appropriate word(s).
When a signal arrives at the cell, it gets transduced. What is meant by the term signal transduction?
A. The signal is inactivated, so that cell stops responding. B. Signal transduction is how the receptor binds to the signal. C. The signal is transmitted inside the cell in another form. D. The mechanisms by which the cell responds to the signal are ducible.
An acid is defined by which of the following?
A) It accepts protons from other elements in a solution. B) It has a high pH value. C) It donates protons to other substances in a solution. D) It is insoluble in water.
If agarose gel electrophoresis is performed and the marker is not used, what information will be lost?
A) The DNA bands will not stain properly B) The DNA bands will not migrate properly C) The size of the DNA bands cannot be determined.