With reference to the Black corals, consider the following statements:
1. Black corals are found only in deep water down to depths of over 26,000 feet.
2. These corals can be recognized by their jet-black or dark brown chitin skeletons, surrounded by polyps.
3. Black corals are filter feeders and eat tiny zooplankton that are abundant in deep waters.
Which of the statements given above are correct?
1
1 and 3 only
2
2 and 3 only
3
1 and 2 only
4
1, 2 and 3