Why Was the Evolution of the Extraembryonic Membranes Crucial for Colonization

question 39

Multiple Choice

Why was the evolution of the extraembryonic membranes crucial for colonization of land by the vertebrates? Extraembryonic membranes ________.

• A) provide an aqueous environment for embryo development
• B) provide nutrients that produce energy for development
• C) direct morphogenesis within the embryo
• D) give rise to crucial organ systems, like the heart and brain

Identify the role of cell division in growth, development, and repair in multicellular organisms.

Describe the genetic mechanisms underlying cell division, including the role of proto-oncogenes and tumor suppressor genes in cancer.

Comprehend the cell cycle's stages and their regulation, including checkpoints and the role of external signals.

Recognize the significance of apoptosis in development and disease prevention.

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Definitions:

Yerkes-Dodson Law

A theory suggesting there is an optimal level of arousal for the best performance on any task: too little or too much arousal can decrease performance.

Arousal Level

refers to the state of being physiologically alert, awake, and attentive, involving mechanisms within the nervous system.

Industrial/Organizational Psychologists

Psychologists specializing in the application of psychological principles and techniques to workplace environments, issues, and behaviors.

Behavior Modification

A treatment approach, based on the principles of operant conditioning, that replaces undesirable behaviors with more desirable ones through positive or negative reinforcement.