Being Attentive and Positive Toward One's Image in a Mirror

question 18

Multiple Choice

Being attentive and positive toward one's image in a mirror appears as early as _____ month(s) old.

• A) 1
• B) 3
• C) 6
• D) 12

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Definitions:

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.

Gastrula

An early embryonic stage following the blastula, characterized by the formation of three primary germ layers that will develop into different tissues and organs.