This Graph Shows the Rate of Cell Division in a Developing

question 59

Multiple Choice

This graph shows the rate of cell division in a developing frog embryo.
Why does the rate of growth decrease dramatically after the point indicated by the arrow?

• A) At this point, development switches from rapid cell growth to cell differentiation and migration.
• B) This arrow indicates when the embryo begins to run out of its internal food source and must find another source to continue developing.
• C) This is when fertilization occurs. Before this point, the single-celled egg was growing quickly as it stored food. After this point, growth slows for the more deliberate process of development.
• D) At the time indicated by the arrow, the trophoblast separates from the inner cell mass and the two tissues begin to divide at different and slower rates.

---

Definitions:

Base Of Power

The underlying sources of influence or authority one has over others, such as expertise, coercion, or referred authority.

Normative

Relating to an ideal standard or model, or based on what is considered to be the normal or correct way of doing something.

Milgram Experiment

A controversial study conducted in the 1960s, demonstrating people's willingness to obey authority figures, even to the point of inflicting harm on others.

Resist

To oppose or strive against something or someone; showing reluctance or opposition to accept or comply with changes, conditions, or regulations.