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.

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Definitions:

Theory of Consumer Behavior

An economic framework describing how individuals make decisions to allocate their resources on consumption items, based on their preferences, income, and the prices of goods and services.

Diminishing Marginal Utility

The principle that as a consumer increases consumption of a good or service, the incremental satisfaction gained from consuming each additional unit decreases.

Purchasing Decisions

Purchasing decisions involve the process by which consumers or organizations make choices about which products or services to buy, influenced by factors such as price, quality, and personal preferences.

Marginal Utility

The boost in happiness or utility a consumer gets from buying one more unit of a product or service.