Subduction on Earth Is the Process by Which

question 109

Multiple Choice

Subduction on Earth is the process by which

• A) cool surface material on Earth sinks below other material at a tectonic plate boundary.
• B) dense material sank while lighter material rose to the surface during the early geological history of Earth.
• C) molten lava oozes out between two tectonic plates that are spreading apart.
• D) volcanic material emerges from the deep interior at a volcanic island such as Hawaii.

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Definitions:

Plasmodesma

Cell junction that forms an open channel between the cytoplasm of adjacent plant cells.

Adhering Junction

Cell junction that fastens an animal cell to another cell, or to basement membrane. Connects to cytoskeletal elements inside the cell; composed of adhesion proteins.

Transport Proteins

Proteins involved in the movement of ions, small molecules, or macromolecules, such as another protein, across a biological membrane.

Membrane

A biological barrier that controls the passage of substances in and out of cells and organelles.