Refer to the Figure

question 151

Multiple Choice

Refer to the figure. Why are thin, stiff pseudopods so useful to the radiolarian below?

• A) They increase the surface area of the radiolarian, allowing for phagocytosis of food particles.
• B) They allow the radiolarian to float, giving its photosynthetic endosymbionts maximal access to light.
• C) They are used to spear prey and immobilize them for saprobic absorption.
• D) They play a role in locomotion, allowing the radiolarian to migrate toward nutrient-rich deposits.
• E) They help defend the radiolarian from attacks by other protists.

---

Definitions:

Two-tailed Test

A statistical test that considers the possibility of both directions of effect (greater than or less than), assessing the significance of a deviation in either direction from a null hypothesis.

Sample Size

The number of observations or data points collected or used in a sample for analysis.

Lower Tail

The portion of a distribution of data or probability to the left of a specified value.

P-value

A measure in statistical hypothesis testing that helps determine the significance of the results.