The slowest but most effective control for acid-base balance is the.

A) respiratory system.
B) buffer systems in the blood.
C) kidney.
D) brain.


Ans: C) kidney.

Biology & Microbiology

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Mitochondrial disorders can be caused by mutations in all the following except:

A. mitochondrial DNA B. nuclear DNA C. cytoplasmic DNA

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In multicellular organisms, specialization in

structure and function of cells is caused by

a. inhibition of transcription. b. methylation of nucleotides. c. a differential expression of genes. d. translation without transcription. e. more than one of these.

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The presence of trans fats in membranes ________ (increases or decreases) membrane fluidity and ________ (increases or decreases) the membrane transition temperature

Fill in the blank with correct word.

Biology & Microbiology

The incidence of BOTH fatal and nonfatal diseases in a population is called

a. mortality. b. morbidity. c. infection. d. pandemic.

Biology & Microbiology