Ken and Marie Have Two Children and Choose to Have

question 101

Multiple Choice

Ken and Marie have two children and choose to have no more. The surgery for Ken that prevents transportation of sperm from the testes to the urethra by clipping is called a(n) ________.

• A) mastectomy
• B) vasectomy
• C) hysterectomy
• D) orchiectomy

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Definitions:

Seawater

The saltwater that fills the oceans and seas, covering approximately 71% of Earth's surface.

Silica-rich Organisms

Refers to organisms that utilize silica (SiO2) in their structural makeup, often found in the cell walls or skeletons, such as diatoms and some sponges.

Chert Formation

The process by which chert, a hard, fine-grained sedimentary rock composed of microscopic silica particles, is formed, often in deep marine environments.

Seawater

A solution of various salts and minerals found in the world's oceans.