Most Oceanic Islands and Seamounts Are

question 1

Multiple Choice

Most oceanic islands and seamounts are:

• A) small pieces rifted apart from continents
• B) places where the seafloor has been buckled upward by convergence
• C) constructed by volcanic eruptions that first occur under water
• D) large fan-shaped mounds deposited by turbidity currents

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Definitions:

Receptors

Proteins typically found on cell surfaces that bind to specific molecules, triggering a response in the cell.

Signaling Molecules

Chemicals released by cells that communicate and coordinate actions across the body or between organisms, crucial in many biological processes.

Histamine

A compound released by cells in response to injury and in allergic and inflammatory reactions, causing contraction of smooth muscle and dilation of capillaries.

Prostaglandins

A group of physiologically active lipid compounds that have diverse hormone-like effects in animals.