Coral Reefs Answers

What is the most important reason to continue efforts to preserve coral reefs?a.Coral reefs are a valuable commodity in the aquarium business.b.Coral reefs support a wide variety of organisms.c.Coral reefs are one of the oldest ecosystems.d.Coral reefs are important for marine recreation.

Coral reefs are one of the oldest ecosystems on Earth.

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

Reef producing coral are called _______.a.mobileb.hermatypicc.limestone polypsd.all of the above

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

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

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

Coral reefs are sometimes referred to as the rainforests of the ocean because of their high levels of biodiversity.

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

What is a direct cause of coral bleaching?a.exposure to sunlightb.the loss of symbiotic algaec.overgrazing by fishd.all of the above