The Effectiveness of Geographic Barriers in Promoting Speciation Is Related

question 15

Multiple Choice

The effectiveness of geographic barriers in promoting speciation is related most to

• A)the size of the barrier.
• B)the inability of the organisms to overcome the barrier.
• C)the speed at which the barrier forms.
• D)how long the barrier exists.
• E)the size of the population it separates.

Understand the environmental adaptations of deep-sea organisms.

Comprehend the phylogenetic relationships and characteristics of flatworms, bryozoans, and rotifers.

Grasp the concept of ecdysozoans and their defining features.

Recognize the feeding mechanisms and characteristics of lophotrochozoans.

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Definitions:

Leukoedema

A benign mucosal condition typically appearing as a milky white edema of the buccal and labial oral mucosa.

Buccal Mucosa

The lining of the inside of the cheeks, part of the mucous membrane that lines the mouth.

Sphenoid Sinuses

Air-filled cavities located within the sphenoid bone of the skull, part of the system of sinuses in the human body linked to the nasal passages.

Maxillary Sinuses

Air-filled spaces located within the cheekbones and under the eyes that are part of the sinus system.