An Entity That Holds Specialized Attributes That Distinguish It from One

question 53

Multiple Choice

An entity that holds specialized attributes that distinguish it from one or more other similar entities is a ________.

• A)supertype
• B)subtype
• C)discriminator
• D)parent

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Definitions:

Blastocyst

A blastocyst is an early stage embryo consisting of 50-150 cells in a fluid-filled sphere, instrumental in the implantation process of pregnancy.

Yolk

Yolk is the nutrient-rich material found within eggs, providing essential energy and nutrients for the developing embryo in various species.

Blastocele

Cavity in the blastocyst.

Trophoblast

Cell layer forming the outer layer of the blastocyst, which erodes the uterine mucosa during implantation; the trophoblast does not become part of the embryo but contributes to the formation of the placenta.