An organism's structure and ________ reflect adaptations to its particular environment
Fill in the blank(s) with correct word
function
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A scientist is examining motile protozoa. He wishes to determine their direction of movement. Which of the following microscopic techniques is least likely to be used to view these cells?
A) light microscopy B) electron microscopy C) differential interference contrast microscopy D) fluorescence microscopy E) phase-contrast microscopy
Species that live in different habitats exhibit ____ reproductive isolation
a. temporal b. behavioral c. gametic d. ecological e. mechanical
Transcription factors function in the expression of genes by
A) initiating replication. B) associating to initiate translation. C) turning transcription of specific genes on or off. D) halting the activity of RNA polymerase at the end of transcription.
Allosteric inhibition is generally a result of:
a. excess substrates b. binding regulatory molecules at a site other than the active site c. a change in the temperature of the system d. binding of the regulatory molecule at the active site e. pH inhibition