Shawn Works the Third Shift at a Local Factory

question 103

Multiple Choice

Shawn works the third shift at a local factory.He often has trouble falling asleep and most days does not get enough rest.This increases the likelihood that he will develop all of the following EXCEPT

• A) fatigue.
• B) stomach problems.
• C) heart disease.
• D) hypertension.

Describe the process and importance of gastrulation in developing embryos.

Recognize the significance of early embryonic organizers in directing development.

Understand mechanisms and outcomes of specific developmental defects.

Understand the basic concepts and roles of embryonic development stages.

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Definitions:

Deuterostomes

A group of animals characterized by their embryonic development; during which the anus forms before the mouth.

Protostomes

Protostomes are a group of animals characterized by an embryonic development in which the mouth forms before the anus during early gastrulation.

Evolutionary Development

The study of how evolutionary processes guide the development of organisms.

Hox Genes

Hox genes are a group of related genes that control the body plan of an embryo along the head-tail axis by specifying regions of development in early embryonic segments.