Most pH buffers are ____

a. strong acids
b. weak acids or weak bases
c. weak acids
d. strong bases
e. strong acids or strong bases


ANSWER: b

Biology & Microbiology

You might also like to view...

As a population declines in size, what would you predict? Check all that apply.  

_____  Loss of genetic variation. _____  More individuals with heterozygote advantage. _____  Deleterious alleles can become fixed due to chance. _____  Homozygosity within individuals in the population will decline. _____  The few remaining individuals will be tough, healthy and fertile. _____  If the environment changes, the population will adapt quickly. Additional: Clarify Question · What is the key concept addressed by the question? · What type of thinking is required? Gather Content · What do you already know about population size and genetic diversity? Choose Answer · Given what you now know, what information and/or problem solving approach is most likely to produce the correct answer? Reflect on Process · Did your problem-solving process lead you to the correct answer? If not, where did the process break down or lead you astray? How can you revise your approach to produce a more desirable result?

Biology & Microbiology

Rhodobacter and Roseobacter are two genera with a common ancestor in Alphaproteobacteria

Indicate whether the statement is true or false.

Biology & Microbiology

Most of the bacteria that cause human disease are ____

a. chemoautotrophs only b. chemoheterotrophs c. photoautotrophs d. photoheterotrophs only

e. chemoautotrophs and photoheterotrophs

Biology & Microbiology

A naïve lymphocyte ____

a. is bound directly to an antigen b. has not yet bound to antigen c. is an antigen-presenting cell d. is a phagocyte e. is inflammatory

Biology & Microbiology