Each segment of an annelid typically contains bristles of chitin called
A. cilia.
B. parapodia.
C. chaetae.
D. leglets.
C. chaetae.
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During the initiation of translation, the small ribosomal subunit binds mRNA, and then the initiator tRNA base-pairs with mRNA. Which step happens next?
a. The ribosome catalyzes the formation of the first peptide bond. b. The first tRNA is released. c. The large ribosomal subunit joins the small subunit. d. The ribosome starts the assembly of the amino acid chain. e. The second tRNA base-pairs with the mRNA.
As an energy carrier, ATP differs from NADPH in that
a. ATP transfers energy through phosphorylation, whereas NADPH donates electrons and hydrogen ions. b. ATP transfers energy through redox reactions, whereas NADPH uses phosphorylation. c. NADPH is involved in a larger variety of chemical reactions than ATP. d. NADPH is made by Photosystem I, whereas ATP is made by Photosystem II.
Which of the following structures in females is analogous in function to the vas deferens in males?
A) urethra B) oviduct C) uterus D) vagina
Of the major groups of fungi that are recognized by most mycologists, which includes the fungi with which most plants form mycorrhizae?
a. Chytrids b. Zygomycetes c. Glomeromycetes d. Ascomycetes e. Basidiomycetes