Peristalsis refers to waves of muscular contractions Indicate whether the statement is true or false
True
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The synthesis of ________, a component of Gram-negative bacterial outer membranes, is complex because it requires understanding both carbohydrate and lipid biosynthesis pathways.
What will be an ideal response?
Scientists believe that macromolecules could have been formed before there were living cells by
a. chemical processes removing water from components. b. oxidation of compounds containing phosphate. c. lightning discharge catalyzing addition of water to molecules. d. enzyme-mediated condensation reactions. e. acidic hydrolysis of compounds in the Earth's oceans.
Placoid scales are found on:
a. fleshy-finned fishes. b. cartilaginous fishes. c. ray-finned fishes. d. lampreys. e. hagfishes
The two true pathogenic enteric genera of the Enterobacteriaceae are _____ and _____.
Fill in the blank(s) with the appropriate word(s)