The Outer Single Layer of Cells of the Blastocyst Is

question 3

Multiple Choice

The outer single layer of cells of the blastocyst is called the _____.

• A) gastrula
• B) trophoblast
• C) inner cell mass
• D) endometrium
• E) zona pellucida

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Definitions:

Felsic Lava

Magma or lava that is rich in lighter elements such as silicon and oxygen, typically forming light-colored volcanic rocks.

Volcanic Domes

Steep-sided, rounded extrusions of viscous lava from a volcano, often resulting from the slow extrusion of silica-rich magma.

Pyroclastic Flows

Fast-moving currents of hot gas and volcanic matter (collectively known as tephra) that move away from a volcano during an explosive eruption.

Eruption Column

A column of volcanic ash and gas that erupts into the atmosphere during a volcanic explosion.