Which Statement About Gastrulation in Amphibians Is True

question 98

Multiple Choice

Which statement about gastrulation in amphibians is true?

• A) Gastrulation increases the number of germ layers from one to three.
• B) The inward movement of mesoderm and endoderm creates the blastocoel.
• C) Mesoderm forms by epiboly.
• D) Inwardly moving bottle cells create the dorsal lip of the blastopore.
• E) Prior to invagination, cells flatten at the vegetal pole.

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Definitions:

Income Effect

The change in consumption resulting from a change in real income, with income changes arising from changes in prices, wages, or other factors.

Inferior Good

A type of good for which demand decreases as the income of consumers increases.

Income-Consumption Curve

A graphical representation showing how changes in a consumer's income affect their spending behaviors on different goods.

Marginal Utility

The additional satisfaction or utility that a consumer receives from consuming one more unit of a good or service.