As Cleavage Divisions Continue, the Ball or Layer Hollows Out

question 7

Multiple Choice

As cleavage divisions continue, the ball or layer hollows out to form the ____.

• A) morula
• B) zygote
• C) blastomere
• D) blastula
• E) gastrula

---

Definitions:

Secular Trend

A long-term trend or pattern observed in data, which is not influenced by seasonal, cyclical, or irregular factors.

Puberty

The developmental phase in which children mature sexually and physically into adults, marked by hormonal changes and growth.

Developed Countries

Nations with high levels of economic development, typically characterized by significant industrialization, a high standard of living, and advanced technological infrastructure.

Food-Insecure Families

Households that lack consistent access to enough food for every member to lead a healthy life, often due to economic hardship or instability.