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Open Ocean Exam

QuestionAnswer
What is the only animal phyla that is not present in the open ocean? Amphibians
What are the most abundant animal in the open ocean? Fish
What are the adaptations of ocean nekton? camouflage, speed and mobility, nervous and sensory systems
What are the conditions significant to ocean nekton? transparency of water, lack of shelter, absence of physical boundaries
What are examples of buoyancy methods used in the open ocean? fatty tissue, blubber, swim bladder
What are defense mechanisms of the oceanic nekton? countershading, fast moving, schooling
What nektonic sense organ allow for sound reception? melon
What oceanic nekton animal has the strongest migration sense? sea turtles
What adaptations help marine animals maintain body heat? far or blubber, large body size, advanced circulatory system
What is holoepipelagic? Organisms that spend their entire lives in the epipelagic
What is oceanodramous? Organisms that migrate to shallow ocean waters to spawn
What is an example of an anadromous fish? salmon
What is an example of an oceanodramous animal? dolphin
What does the term nekton mean? open ocean
What is viviparity? When embryos develop within the placenta inside the mother
What is oviparity? When fertilized eggs are laid by the mother and hatch outside
What are examples of locomotion adaptations? high fin aspect ration, swimming in schools, elongated body shape
What are some reasons why scientists track oceanic animals? Answers vary
What are three adaptations of oceanic nekton and how and why are they different from other animals that live in the ocean? Answers vary
Explain the significance of sensory adaptation in the ocean nekton. What are two examples of animals that possess this adaptation and why is it crucial to their survival? Answers vary
What are 2 ways that oceanic nekton defends themselves from predators and why do they need to take this into consideration? Answers vary
What is a food web? Give an example of a food web and explain what would happen if one species were to become endangered or extinct. Which species would be affected and would it be limited to only those that are directly connected? Answers vary
Created by: aandersonbiology
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