Which of the Following Statements Regarding the Early Development of the Human

question 22

Multiple Choice

Which of the following statements regarding the early development of the human embryo is FALSE?

• A)Four to five days after fertilization,an inner cell mass begins to form.
• B)After six to seven days,the blastocyst begins to attach to the uterine wall.
• C)After eleven to twelve days,the blastocyst is joined to the uterine wall.
• D)The embryonic stage begins at six to seven days after fertilization.

---

Definitions:

AB Design

A basic experimental design involving a baseline (A) followed by a treatment or intervention phase (B) to measure change.

Time-Series Format

A sequence of data points collected or recorded at successive points in time, often used to analyze trends over time.

Reversal Design

A behavioral research methodology where an initial baseline condition is observed, an intervention implemented, and then withdrawn to observe changes in behavior or conditions, often followed by the reintroduction of the intervention.

Mechanisms of Change

Refers to the processes or pathways through which an intervention or action produces its effects.