2. Compared to areas, cold du

Human Anatomy & Physiology (11th Edition)
11th Edition
ISBN:9780134580999
Author:Elaine N. Marieb, Katja N. Hoehn
Publisher:Elaine N. Marieb, Katja N. Hoehn
Chapter1: The Human Body: An Orientation
Section: Chapter Questions
Problem 1RQ: The correct sequence of levels forming the structural hierarchy is A. (a) organ, organ system,...
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1. Like desert rodents such as the kangaroo rat, marıne
mammals such as dolphins have highly efficient kidneys
that produce only a tiny amount of very concentrated
urine. What common selective pressure shaped this trait
in these seemingly dissimilar animals?
2. Compared to closely related species that live in warmer
areas, cold dwellers tend to have larger body size and
smaller appendages. Think about heat transfers between
animals and the habitat, then explain why smaller
appendages and larger body size are advantageous in
very cold climates.
3. When marathoners or other endurance athletes sweat
heavily and drink a large amount of pure water, their
Transcribed Image Text:1. Like desert rodents such as the kangaroo rat, marıne mammals such as dolphins have highly efficient kidneys that produce only a tiny amount of very concentrated urine. What common selective pressure shaped this trait in these seemingly dissimilar animals? 2. Compared to closely related species that live in warmer areas, cold dwellers tend to have larger body size and smaller appendages. Think about heat transfers between animals and the habitat, then explain why smaller appendages and larger body size are advantageous in very cold climates. 3. When marathoners or other endurance athletes sweat heavily and drink a large amount of pure water, their
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