Which traits were originally used for classifying organisms into taxonomic categories?
a. morphology and behavior
b. DNA and amino acid sequences
c. physiology and biochemical pathways
d. geography and ecology
e. morphology and physiology
ANSWER: a
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Recycling of used eIF2 (eIF2-GDP), after it has served its rolein translation initiation, is facilitated by:
A. dephosphorylation of eIF2. B. phosphorylation of the GDP on eIF2 to recreate the active eIF2-GTP. C. release of the GDP by a guanine nucleotide exchange factor. D. dephosphorylation of eIF2.
In the total organic carbon (TOC) test, microorganisms are used to measure the levels of carbon in a water sample.
Answer the following statement true (T) or false (F)
What is the function of the iris?
a. control the amount of light entering the eye b. focus the image on the retina c. respond to particular colors d. keep the lens under tension to allow for image focusing e. prevent light scattering upon entry to the eye
daughter cells are
What will be an ideal response?