During Early Embryonic Development, a Protein Called Sonic Hedgehog Is

question 14

Multiple Choice

During early embryonic development, a protein called sonic hedgehog is released from a cell and travels in a small gradient through the interstitial fluid only to nearby cells. This helps to establish the path and direction of development for the nervous system and limbs. Knowing this, sonic hedgehog must be a(n) ________ signal.

• A)endocrine
• B)paracrine
• C)autocrine
• D)nervous

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Definitions:

Effort Justification

A phenomenon where individuals rationalize the effort they have put into achieving a goal, valuing it more highly as a result.

Resume

A document summarizing an individual's background, including education, work experience, and skills, typically used for job applications.

Cognitive Dissonance Theory

The theory that inconsistencies produce psychological discomfort, leading people to rationalize their behavior or change their attitudes.

Social Loafing

The finding that people reduce effort when working in a group, compared to when working alone.