The Following Questions Refer to the Description Below

question 53

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) .
-The adaptation of the body shape of snakes has resulted in one of their lungs becoming vestigial. Another adaptation (to a fossorial lifestyle) is snakes' absence of limbs. If the "mystery organism" has also become adapted to a fossorial lifestyle, though its ancestors moved about on the surface, then which structures should one expect to find upon dissecting the organism?
1) reduced or absent pelvic and/or pectoral girdles
2) metanephridia
3) hydrostatic skeleton

• A) 1 only
• B) 1 and 2
• C) 1 and 3
• D) 2 and 3
• E) 1, 2, and 3

Explain the effects of sleep deprivation on mood, cognitive, and physical performance.

Identify the factors that can affect sleep patterns across different age groups.

Recognize the functions of REM sleep and its effects on the body and mind.

Describe the circadian rhythm and how it influences sleep and wakefulness.

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A theory in positive psychology that suggests positive emotions broaden one's awareness and encourage novel, varied, and exploratory thoughts and actions.

Broaden-and-build Theory

A psychological theory suggesting that positive emotions broaden one’s awareness and encourage novel, varied, and exploratory thoughts and actions, which over time build an individual’s personal resources.