Human Trophoblasts

question 50

Multiple Choice

Human trophoblasts

• A) form the inner cell mass.
• B) form from ectoderm.
• C) are the precursors of the mesoderm.
• D) are of embryonic origin and function in embryo nutrition.
• E) are of maternal origin and function in embryo gas exchange.

---

Definitions:

Basic Geometric Shapes

Simple forms such as circles, squares, triangles, and rectangles that are a foundational element of geometry.

Artistic Development

The process and stages of growth in creating, understanding, and appreciating art.

Motor and Cognitive Skills

Skills related to physical movement and mental processes respectively. Motor skills include tasks like walking, while cognitive skills involve tasks like thinking and problem-solving.

Social and Sensory Skills

These skills involve the ability to interact effectively with others and to process and respond to sensory input from the environment.