H2S and NH3 may be used by some prokaryotes as energy sources

Indicate whether this statement is true or false.


TRUE

Biology & Microbiology

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Prezygotic mechanisms lead to reproductive isolation by preventing the formation of 

A. mating pairs. B. fertile eggs. C. fertile sperm or pollen cells. D. somatic cells. E. hybrid zygotes.

Biology & Microbiology

Unexpected phenotypes can be the result of

a. altered metabolic pathways. b. a gene mutating in different ways in different individuals. c. an environmental effect during development. d. a post-developmental environmental effect. e. any of these

Biology & Microbiology

Where are most glucose transporter proteins ("GLUTs") located when levels of the hormone insulin are LOW?

A. inserted into the nuclear membrane B. inserted into the plasma membrane C. in the membranes of intracellular vesicles D. in the endoplasmic reticulum E. in the liver-they are transported to other cells when glucose levels rise.

Biology & Microbiology

In the event that you are trying to explain the variation in Y using the variables X and Z in a linear regression, the multiple regression line would be given by which of the following?

A. Y = b + m1X + m2Z B. Y = b + m1X C. Y = b + m1Z D. Y = b + m1X and Y = b + m1Z

Biology & Microbiology