The Following Questions Refer to the Description Below

question 9

Multiple Choice

The following questions refer to the description below.
Terry catches a ray-finned fish from the ocean and notices that, attached to its flank, there is an equally long, snakelike organism. The attached organism has no external segmentation, no scales, a round mouth surrounded by a sucker and two small eyes. Terry thinks it might be a marine leech, a hagfish, or a lamprey.
-Terry saved some of the tooth-like objects within the hagfish's round mouth to analyze their composition in his mentor's biochemistry research lab. Terry will find that they are composed of the same protein found in reptilian

• A)scales.
• B)teeth.
• C)bones.
• D)blood.
• E)muscles.

---

Definitions:

Internal Consistency

A measure of how well the items on a test or the components of a multi-dimensional instrument assess the same construct.

Coefficient Alpha

A measure of the internal consistency of a test or survey, indicating how closely related a set of items are as a group.

Computerized Axial Tomography

Also known as a CT scan, a diagnostic medical test that uses computer-processed combinations of multiple X-ray measurements taken from different angles to produce images of specific areas of the scanned object, allowing the user to see inside without cutting.

X-rays

A form of electromagnetic radiation with wavelengths shorter than visible light, used in medical imaging to view inside the body.