1. since the photic zone generally isn't below 100 meters, deep water sharks live in outer shelf and bathyal zone.
2. birds like this would live in the intertidal zone, because the food there would be richest, bringing food with the tides.
3. sponges need to be covered in water all the time, but since its photosynthetic, they have to be in the photic zone, so it must live in the inner shelf.
4. if bacterium is autotrophic, it makes its own food, but it doesn't do photosynthesis, so it doesn't need light. so it probably lives in the aphotic zone. since they use chemicals found in sediments, it probably lives on the seafloor. the seafloor of the aphotic zone is the abyssal zone.
2nd Edition•ISBN: 9781464108686 (2 more)Andrew Friedland, Rick Relyea 3rd Edition•ISBN: 9781319113292Andrew Friedland, Rick Relyea 4th Edition•ISBN: 9781259893544Mackenzie L. Davis, Susan J. Masten 13th Edition•ISBN: 9780134325309Dorothy F. Boorse, Richard T. Wright