For Many Years, Scientists Believed That Almost All Animal Lineages

question 43

Multiple Choice

For many years, scientists believed that almost all animal lineages burst into being during the Cambrian era (just after the end of the Precambrian super eon) . However, there have been many recent findings of animal-like fossils and "trace fossils" (fossils of an animal-like organism's movement) from the late Precambrian. Which of the following best explains why it took so long to realize there was animal-like life in the Precambrian?

• A) There were no animals in the Precambrian.
• B) Animals from the late Precambrian had soft bodies.
• C) There were many hard-shelled animals in the Cambrian.
• D) The global climate was such that there was poor fossilization in the Precambrian.

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Definitions:

Task Identity

Refers to the degree to which a job requires completion of a whole and identifiable piece of work, making it possible to see the outcome of one's efforts.

Teamwork

The collective endeavor of a team to accomplish a shared objective or finish a task in the most optimal and productive manner.

Hygiene Factor

A term in Herzberg's motivation theory, referring to extrinsic conditions that prevent dissatisfaction but do not necessarily motivate employees.

Herzberg's Motivator-Hygiene Model

A theory in organizational behavior suggesting that certain factors drive job satisfaction (Motivators), while different factors cause dissatisfaction (Hygiene factors) if not present.