If all functional groups are removed from an organic molecule, leaving only a hydrocarbon chain, the molecule becomes a:
A. Lipid
B. Carbohydrate
C. Protein
D. Nucleic acid
A
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Annelids possess a(n) ________ skeleton that gains support from internal fluids
a. setae b. cartilaginous c. hydrostatic d. exterior
Estimates of HANPP range around 20 percent, yet what percent of total heterotrophic biomass do humans make up?
A) 20 percent B) 50 percent C) 10 percent D) less than 1 percent
?-TuRCs contain ________-tubulin and nucleate microtubule growth from MTOCs known as ________
Fill in the blank with correct word.
During DNA replication, complementary nucleotides are added to the separated strands of the original DNA by enzymes. Which one of the following bases would a nucleotide contain if it were paired to a nucleotide containing thymine?
A) adenine B) uracil C) another thymine D) cytosine E) guanine