Perhaps the Most Difficult Oceanic Habitat Is/are

Q56: Some of the very large species of

Q57: Autotrophic plankton are generally called .<br>A) zooplankton<br>B)

Q58: Tube worms at seafloor vents get their

Q59: What do scientists think might form the

Q60: Which of the following statements is FALSE

Q62: Organisms with backbones are called .<br>A) vertebrates<br>B)

Q63: Pelagic organisms live in the open ocean.

Q64: The most important physical factor for intertidal

Q65: Which organism forms colonies of individuals living

Q66: Photosynthetic plankton are called phytoplankton and include