ENWC424 Study Guide - Midterm Guide: Heterogametic Sex, Intermediate 1, Van Der Waals Force

• School: University of Delaware
• Department: Entomology and Wildlife Conservation
• Course: ENWC424
• Professor: Nate Nazdrowicz

Document Summary

Inner ear: columella vibrations disturb fluids of inner ear, forelimb-operculum, seismic sounds, frogs and salamanders, travels to the papilla amphibiorum, forelimbs conduct sound vibrations via the suprascapular to 2 muscles. Increase body size: wedge in crevices, negative pressure ventilation, used by all reptiles to breathe, buccal pumping may supplement inhalation, exhalation, open glottis, compress thoracic cavity with trunk muscles. Increased evaporation and water loss, limited to moist habitats, decreased protective functions, and the effectiveness decreases with increasing body size: aquatic, properties of water, water hold less o2 per unit volume than air, warm water holds less. O2 than cold water, water more dense and viscous than air, diffusivity of o2 lower in water than gas, stagnation gradient can occur close to skin. Increased sensitivity to water quality: to combat this: Low wind speed, high humidity, night time, aestivation: posture, limiting evaporative surface areas such as the belly.