Inflowing river waters most often impoverish rather than fertilize estuaries
Indicate whether the statement is true or false
TRUE
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Which of the following PCR procedures includes all of the others?
A. DNA is reannealed at 50oC B. DNA is denatured at 95oC. C. Primers are extended at 72oC. D. DNA is amplified for one cycle.
Which one of the following statements about rickettsias is false?
A) Diseases caused by rickettsias are arthropodborne. B) Rickets is caused by a Rickettsia species. C) Rickettsia species cause typhus and typhuslike diseases. D) Rickettsias have leaky membranes.
If a reaction absorbs free energy it is termed which of the following?
a. exergonic reaction b. endergonic reaction c. metabolic reaction d. bioenergetic reaction
The cell theory states that the cell is the basic unit of structure for all organisms. What smaller structure would make up the cells of all organisms?
A) cell wall B) chloroplast C) nucleus D) cell membrane