The Following Questions Refer to the Description and Table 28

question 49

Multiple Choice

The following questions refer to the description and Table 28.1 below.
Diatoms are encased in Petri-plate-like cases (valves) made of translucent hydrated silica whose thickness can be varied. The material used to store excess calories can also be varied. At certain times, diatoms store excess calories in the form of the liquid polysaccharide, laminarin, and at other times, as oil. Below are data concerning the density (specific gravity) of various components of diatoms, and of their environment.
Table 28.1: Specific Gravities of Materials Relevant to Diatoms
$$\begin{array} { l l } \text { Material } & \text { Specific Gravity } ( \mathrm { kg } / / \mathrm { m }^{3} ) \\\text { Pure water } & 1000 \\\text { Seawater } & 1026 \\\text { Hydrated silica } & 2250 \\\text { Liquid laminarin } & 1500 \\\text { Diatom oil } & 910\end{array}$$
-If the Archaeplastidae are eventually designated a kingdom, and if the land plants are excluded from this kingdom, then what will be True of this new kingdom?

• A)It will be monophyletic.
• B)It will more accurately depict evolutionary relationships than does the current taxonomy.
• C)It will be paraphyletic.
• D)It will be a True clade.
• E)It will be polyphyletic.

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