Among the primary nutrients that may reduce the risk of cancer are vitamins K and B.
a. true
b. false
b. false
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What happens first following a neuron
stimulation? a. Sodium ions enter the cell. b. Sodium ions leave the cell. c. Potassium ions enter the cell. d. Potassium ions leave the cell. e. Potassium ions are involved in positive feedback.
Select the activity in column 2 that best matches each factor in column 1
A) UUU B) catalyzes translocation of the ribosome C) involved in transcription D) associated with the binding of mRNA in the ribosome E) binds to Shine–Dalgarno sequence F) involved in replication G) contains information in the form of anticodons H) catalyzes the formation of amino acid-AMP I) AUG J) UAG K) binds to Pribnow box L) catalyzes formation of peptide bonds M) catalyzes disassembly of the translation complex N) associated with the binding of tRNA in the ribosome O) catalyzes disassembly of the transcription complex 1) start codon 2) 30S ribosomal subunit 3) tRNA 4) peptidyl transferase 5) aminoacyl-tRNA synthetase 6) release factor 7) stop codon 8) elongation factor G 9) 16S rRNA 10) RNA polymerase
In hermaphroditism, a single individual produces both sperm and eggs. Indicate whether the statement is true or false
All of the following are characteristics of modern amphibians except:
a. Ten pairs of cranial nerves b. Separate sexes c. Smooth moist skin d. Endothermic e. Bony skeleton