Recent Discoveries Have Shown the Challanger Expedition and Other 19th-Century

Q5: The energy source for the bacteria that

Q6: The presence of bioluminescent organs on the

Q7: Bacteria thriving around deep-sea hydrothermal vents are:<br>A)Photosynthethic.<br>B)Symbiotic.<br>C)Heterotrophic.<br>D)Parasitic.<br>E)Chemosynthetic.

Q8: An important feeding adaptation among deep-sea fishes:<br>A)Migration

Q9: Which of the following is least likely

Q11: The most numerous organisms on the deep

Q12: The deep-sea scavengers include animals that feed

Q13: The condition that creates the largest problem

Q14: A chambered nautilus is a species of.<br>A)Cnidarian.<br>B)Bathyopelagic

Q15: In addition to food,deep-water animals depend on