Deep Sea 1
What body color(s) would you most expect to find in the mesopelagic zone?
red/black/transparent
This color of light is the only light reaching the mesopelagic zone
blue
This structure in echolocating marine mammals focuses sound waves forward into a tight beam
melon
Name one of the two herbivorous marine mammals (common name or Family)
manatee/dugong (Trichechidae/Dugongidae)
Basking behavior is used by marine reptiles for this purpose
thermoregulation/to warm up
Using bioluminescence to mimic the effects of countershading is called __________
Counterillumination
This color of light is the only light reaching the aphotic zone
none
This structure in cetaceans produces the sound used for echolocation
monkey lips/dorsal bursa complex
This type of echolocation sound usually indicates an animal is about to capture prey
buzz
This marine bird has the longest wingspan of any bird
Albatross
This adaptation allows gulper eels to be efficient predators when food is scarce
Large jaws/mouth/stomach
What behavioral adaptation allows ambush predators to be energetically efficient
remaining motionless/using lures
The "jug-handle" pose in pinnipeds is a behavioral adaptation for this
Reducing heat loss
The special heat-conserving arrangement of incoming veins surrounding outgoing arteries is called _______
Countercurrent Heat Exchanger
Besides sea green turtles, this is the only other herbivorous marine reptile
Marine iguana
Animals that cannot produce their own luciferins use these organisms to do it for them
Bacteria
Trimethylamine oxide (TMAO) is an adaptation in deep sea organisms that prevents ________
Protein compression/distortion
This is the main reason that deep-diving mammals do not use fur for thermoregulation
Air is compressible at depth, blubber is not
This is the only group of marine mammals known to echolocate
odontocetes
This is the only species of sea turtle lacking scutes
Leatherback sea turtle (Dermochelys coriacea)
This structure reflects light back through the retina after it has already passed through
Tapetum lucidum
Being flabby is an anatomical adaptation in response to a lack of _________
oxygen/food
How does a large body size decrease the rate of heat loss?
it decreases the surface area-to-volume ratio
Besides changing the conductance and surface area-to-volume ratio, what other factor can decrease heat loss?
the temperature gradient
This seabird has the highest wing area-to-mass ratio of any bird
Magnificent frigatebird