The Following Questions Refer to the Description and Table 28

question 9

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
$$\begin{array} { l l } \text { Material } & \text { Specific Gravity } ( \mathrm { kg } / / \mathrm { m }^{3} ) \\\text { Pure water } & 1000 \\\text { Seawater } & 1026 \\\text { Hydrated silica } & 2250 \\\text { Liquid laminarin } & 1500 \\\text { Diatom oil } & 910\end{array}$$
-Similar to most amoebozoans, the forams and the radiolarians also have pseudopods, as do the white blood cells of animals. If one were to erect a taxon that included all organisms that have cells with pseudpods, what would be True of such a taxon?

• A)It would be polyphyletic.
• B)It would be paraphyletic.
• C)It would be monophyletic.
• D)It would include all eukaryotes.

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Definitions:

Heritability

A measure in genetics that quantifies how much of the variation in a specific trait within a population can be attributed to genetic factors.

Trait

A characteristic way of thinking, feeling, or behaving that is consistent across time and situations.

Individual Differences

Differences in psychological characteristics, behaviors, and physical reactions among individuals.

Humanistic

A psychological perspective emphasizing empathy and the good in human behavior, focusing on self-improvement, free will, and the unique individual experience.