The Following Questions Refer to the Description Below

question 22

Multiple Choice

The following questions refer to the description below.
While on an intersession course in tropical ecology, Kris pulls a large, snakelike organism from a burrow (the class was granted a collecting permit) . The 1-m-long organism has smooth skin, which appears to be segmented. It has two tiny eyes that are hard to see because they seem to be covered by skin. Kris brings it back to the lab at the field station, where it is a source of puzzlement to the class. Kris says that it is a giant oligochaete worm; Shaun suggests it is a legless amphibian; Kelly proposes it belongs to a snake species that is purely fossorial (lives in a burrow) .
-Examination of the fossils of Archaeopteryx reveals that, in common with extant birds, it had

• A)a long tail containing vertebrae.
• B)feathers.
• C)teeth.
• D)both A and B
• E)A, B, and C

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Definitions:

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A common and serious medical illness that negatively affects how you feel, the way you think, and how you act, offering a persistent feeling of sadness and loss of interest.

Pleasure Centers

Pleasure centers are areas of the brain, notably within the limbic system, that are activated by rewarding stimuli, leading to feelings of pleasure.

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Compulsive engagement in rewarding stimuli, despite adverse consequences.

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The process of discontinuing tobacco smoking, which can lead to improved health outcomes and reduced risk of smoking-related diseases.