Which of the Following Statements Hold for

question 74

Multiple Choice

Which of the following statements hold for

• A) is continuous, and the partial derivatives and exist everywhere.
• B) is continuous, but the partial derivatives and do not exist at the origin.
• C) is continuous and exists everywhere, but does not exist at the origin.
• D) and do not exist at points and .
• E) is not continuous at the origin.

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Definitions:

Ectoderm

The outermost layer of cells or tissue of an embryo in early development, giving rise to the nervous system and the epidermis, among other structures.

Mesoderm

The middle layer of an embryo in early development, giving rise to the musculoskeletal, vascular, and urogenital systems.

Trophoblast

The outer layer of cells surrounding a blastocyst in early pregnancy, which provides nutrients to the embryo and develops into part of the placenta.

Embryonic Period

A stage of prenatal development that takes place from fertilization until about the eighth week, during which the major organs and structures of the organism begin to develop.