________ is a beneficial relationship similar to mutualism, in which the relationship is not obligatory.
Fill in the blank(s) with the appropriate word(s).
Cooperation
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The donor cell makes ___________ whose function is to bring F- cells close enough to transfer a ___________ to the recipient.
A. a sex pilus, single strand of DNA B. a sex pilus, double strand of DNA C. an F factor, fertility plasmid D. an F factor, replicated F factor E. a sex pilus, bacterial chromosome
Which of the following statements about the cyclic pathway is false? a. In the cyclic pathway, electrons moving through the ETC power the pumping of hydrogen ions into the thylakoid compartment
b. In the cyclic pathway, electrons lost from the photosystem are returned to it. c. The cyclic pathway involves type I photosystems but not type II photosystems. d. The cyclic pathway produces ATP and NADPH.
The breakdown of ____ into cellular energy can involve glycolysis.
A. carbohydrates B. fats C. proteins D. carbohydrates and fats E. fats and proteins
The layers of peptidoglycan of the bacterial cell wall can be cross-linked by peptide intrabridges or by direct cross-linking.
Answer the following statement true (T) or false (F)