Every type of mollusc has a radula
Indicate whether the statement is true or false
F
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What does it mean to say that a signal is transduced?
A) The signal enters the cell directly and binds to a receptor inside. B) The physical form of the signal changes from one form to another. C) The signal is amplified, such than even a single molecule evokes a large response. D) The signal triggers a sequence of phosphorylation events inside the cell.
During erection, the _____ can be seen as a raised column on the lower side of the penis.
A. fourchette B. corpus spongiosum C. vas deferens D. perineum
A bryologist (a scientist that studies mosses, and their allies) gives a lecture to your biology class. In her lecture, she makes a reference to fern reproduction. She says, "Fern spores germinate into ________."
A. gametophytes, which are often heart-shaped and have roots that anchor the fern to the substrate B. gametophytes, which are often heart-shaped and have rhizoids that anchor the fern to the substrate C. sporophytes, which are often heart-shaped and have rhizoids that anchor the fern to the substrate D. sporophytes, which are often heart-shaped and have roots that anchor the fern to the substrate
The amino acids of a growing polypeptide chain are held together by what kind of bond during the elongation stage of translation?
A. glycosidic B. peptide C. lactose D. hydrogen E. noncovalent