Terry Catches a Ray-Finned Fish from the Ocean and Notices

question 32

Multiple Choice

Terry catches a ray-finned fish from the ocean and notices that attached to its flank 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 concludes it is a hagfish.
Terry saved some of the tooth-like objects within the hagfish's round mouth to analyse their composition in his mentor's biochemistry research lab. Terry will find that they are composed of the same protein found in tetrapod ________.

• A) scales
• B) teeth
• C) bones
• D) cartilage

Explain the role of the plasma membrane in cell communication.

Identify the differences between passive and active transport mechanisms.

Distinguish between different types of transport proteins and their functions.

Describe the impact of osmotic pressure on cells.

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Definitions:

Cause of Death

The specific reason or event that directly leads to an individual's death.

HIV Retrovirus

A type of virus, including HIV, that replicates in a host cell by converting its RNA into DNA, leading to long-term infection and immune system damage.

T-cells

A type of lymphocyte (white blood cell) that plays a central role in cell-mediated immunity.

Bind

To secure or tie something tightly or to stick together; in computing, it can refer to the practice of linking or establishing a connection between two pieces or elements.