A natural predator of the crown-of-thorns sea star is a mollusc called the Giant Triton, Charonia tritonis. If the triton uses a radula to saw into the sea star, then to which clade should the triton belong?
A) chitons
B) bivalves
C) gastropods
D) cephalopods
C
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What poisonous gas is present in cigarette smoke that binds to hemoglobin? Why is it dangerous?
What will be an ideal response?
A plant that you are studying has sluggish wound healing abilities as well as an inability to store significant food reserves. You would like to enhance these properties. If you could enhance the growth of a tissue to improve these properties, which tissue would you enhance?
A. periderm B. lateral meristem C. parenchyma of the stem cortex D. root apical meristem
Which tissue has little extracellular matrix, acts as an insulator, and is used to store chemical energy?
a. loose connective tissue b. blood c. cartilage d. fibrous connective tissue e. adipose tissue.
In plants, primary and secondary cell walls, though distinctly different, share all of the following molecules except
a. cellulose. b. hemicelluloses. c. pectin. d. peptidoglycans.