Solved

The Following Questions Refer to the Description and Table 28

Question 8

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
 Material  Specific Gravity (kg//m3)  Pure water 1000 Seawater 1026 Hydrated silica 2250 Liquid laminarin 1500 Diatom oil 910\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}
-Which taxon of eukaryotic organisms is thought to be directly ancestral to the plant kingdom?


A) golden algae
B) radiolarians
C) foraminiferans
D) apicomplexans
E) green algae

Correct Answer:

verifed

Verified

Unlock this answer now
Get Access to more Verified Answers free of charge

Related Questions

Q6: Which statement regarding resistance is False?<br>A)Many of

Q7: The following questions refer to the

Q9: The following questions refer to the

Q10: Which protists are in the same eukaryotic

Q11: Why is the filamentous morphology of the

Q13: Protists are alike in that all are<br>A)unicellular.<br>B)eukaryotic.<br>C)symbionts.<br>D)monophyletic.<br>E)autotrophic.

Q46: The next few questions refer to the

Q61: Diatoms are mostly asexual members of the

Q73: Which of the following is correctly described

Q75: You are given the task of designing