Coral Reefs Answers

What is the purpose of the tentacles of coral polyps?a.defenseb.food capturec.clearingd.all of the above

Which of the following statements about coral reef preservation efforts is true?a.In order to preserve coral reefs, all aquarium trade in coral reef organisms must end.b.Legislation has had no impact on coral reef preservation efforts.c.Various preservation methods have had some positive impact on coral reef preservation.d.Education of fishermen has eliminated all coral reef loss.

Which of the following is true of coral? a. It is located in deep sea regions. b. It supports few species. c. It is composed of a single large and complex coral organism. d. It is composed of thousands of individual coral organisms. Please select the best answer from the choices provided

Coral bleaching that occurs because of the introduction of foreign substances is _______.a.solar irradianceb.dilutionc.xenobioticsd.harvesting

Reefs grow best in _______.a.deep waterb.low salinityc.temperatures below 25°Cd.shallow water

Coral bleaching occurs when a colony of polyps are under stress.

What is the main concern with coral harvesting methods?a.Coral harvesting methods are not economically profitable.b.The coral cannot regenerate quickly enough to recover from harvesting practices.c.Organisms that rely on coral are harmed by the methods, even though the coral is not.d.The coral is harmed by the methods, even though the organisms that rely on it are not.

Fish rely on coral for _______.a.shelterb.food supplyc.camouflaged.all of the above

Which of the following can lead to coral bleaching?a.long-term temperature variationsb.increased solar radiationc.freshwater dilutiond.all of the above

Legislation has been ineffective at preserving coral reefs.