Only Gram-positive bacteria produce exotoxins
Indicate whether this statement is true or false.
FALSE
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What will happen to a cyanobacterium that has its photosystem II (PSII) blocked?
A) Additional electron acceptors, such as NADP+, will be required to oxidize oxygen and overcome the lost PSII process. B) Anoxygenic photosynthesis only using photosystem I (PSI) could occur by using cyclic photophosphorylation and an alternative electron donor such as H2S. C) It will die from being unable to obtain energy for photosynthesis. D) Photons will generate excessive reactive oxygen species and the cyanobacterium will die as a consequence.
In the representation of hydrogen gas, H-H, the dash represents two electrons being shared equally
Indicate whether the statement is true or false.
The most important factor in a female's sexual preference is the ________ her male partner(s)
a. quality of b. amount of food provided by c. quantity of d. assistance in raising offspring by
Mosses are an example of which of the following?
A. primary consumers B. detritovores C. decomposers D. autotrophs E. heterotrophs