Figure 21.4 Using the Above Figure, Identify the Labeled Structure(s) in Each

question 138

Multiple Choice

Figure 21.4

Using the above figure, identify the labeled structure(s) in each of the following questions.
-Identify the structure(s) indicated by Label T.

• A) Auricle
• B) Interatrial septum
• C) Ventricle
• D) Interventricular septum
• E) Atrium

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Definitions:

Pseudopodia

Temporary, amoeba-like projections of eukaryotic cell membranes that are used for movement and feeding.

Amoeboids

Organisms characterized by their ability to change shape due to the movement of their pseudopodia, aiding in locomotion and feeding.

Euglenids

Unicellular organisms that are mostly autotrophic, belonging to the kingdom Protista.

Dinoflagellates

A group of single-celled organisms found in marine and freshwater environments, known for their role in algal blooms and as a food source in aquatic food chains.