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habitat selection, regulatory behaviors and seasonal migration
3 examples of behavioral thermoregulation (used by ectotherms)
place between cutaneous and swimming muscles in endothermic fish where warm venus blood from swimming muscle and cold artery blood from gills come into close contact and countercurrent heat exchange warms artery blood as it moves towards inner fish
water conducts heat faster and has greater heat capacity
water vs. air. Why is it so much harder to thermoregulate in water?
fish that can osmoregulate over a wide range of environmental salinities. Estuarine and diadromous species
urea is converted to ____ that protects enzymes of elasmobranchs from high organic salt concentrations
highly vascular organ in elasmobranchs that actively transports NaCl from blood and carries to intestine
lateral line and ear work togeather to detect sound, vibration and displacement of water
sensory hair cells. Ones that are randomly distributed around head are independent from canal system
degree in which tressteral objects are compressed when viewing from underwater... "Snells window"
deep sea species (ex. hatchetfish 1000m) are most likely to have only ___________ photoreceptors
electroreceptors in shallow canals filled with conductive gel that detect weak, low frequency signals emitted by prey
electroreceptors that are located in epidermal depressions and are sensitive to high frequency currents
jamming avoidance response (JAR)
adaptation in gymnotiform fishes that produce electric feilds to adopt non overlapping frequencies to avoid gamming of electrolocation signals
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