It takes the Earth ________ to orbit around the sun.
A. 1 month
B. 1 day
C. 1 year
D. 12 hours
Answer: C
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Which of the following describes an accurate order of events in translation?
A. Ribosomal translocation occurs before the first aminoacyl-tRNA molecule binds to the small subunit. B. Initiation of translation occurs only after the small subunit dissociates from the mRNA. C. The large subunit of the ribosome binds the mRNA before the small subunit. D. The first aminoacyl-tRNA molecule binds to the small subunit before the large subunit binds.
Which group has a tentacle ringed mouth and a gastrovascular cavity?
a. sponges b. cnidarians c. flatworms d. annelids e. arthropods
In prokaryote DNA replication, nuclotide
assembly is
a. faster than eukaryotes. b. slower than eukaryotes. c. about the same speed as eukaryotes. d. sometimes slower; sometimes faster than eukaryotes. e. none of these
Which cells make up cartilage?
A) fibroblasts B) osteocytes C) chondrocytes D) hepatocytes