Coral reefs contain algae that perform photosynthesis. The coral provide the algae with a place to live, and the photosynthesis performed by the algae provide the coral with sugar for nourishment. If the water gets too warm, the algae cannot perform photosynthesis, and the coral will reject the algae. This causes the coral to lose its color, because the typically vibrant colors of coral are actually the result of the presence of the algae. This is called coral bleaching. If algae don't return to the coral and begin to photosynthesize quickly enough, the coral can die.

Question

Coral reefs contain algae that perform photosynthesis.  The coral provide the algae with a place to live, and the photosynthesis performed by the algae provide the coral with sugar for nourishment.  If the water gets too warm, the algae cannot perform photosynthesis, and the coral will reject the algae.  This causes the coral to lose its color, because the typically vibrant colors of coral are actually the result of the presence of the algae.  This is called coral bleaching.  If algae don't return to the coral and begin to photosynthesize quickly enough, the coral can die.

2a.  You are creating a poster to use in a display that will explain coral bleaching.  All of the following statements are true.  Identify the TWO statements that would be MOST important to include on a poster that explains coral bleaching and the two statements that would not be important to include on such a poster.

which of the answers below are Important for the Coral Bleaching Poster or Not Important for the Poster?

Scientists estimate that there are over 6,000 species of coral in the world.

Coral will reject algae that don't photosynthesize, causing bleaching and possibly death for the coral.

The Great Barrier Reef off the coast of Australia is one of the most biodiverse regions on our planet.

Global warming can cause ocean water to be too warm for the algae that live in the coral to perform photosynthesis.

GPT-4o mini · Answer

For your coral bleaching poster, the TWO statements that would be MOST important to include are:

Coral will reject algae that don't photosynthesize, causing bleaching and possibly death for the coral.
Global warming can cause ocean water to be too warm for the algae that live in the coral to perform photosynthesis.

The TWO statements that would NOT be important to include on the poster are:

Scientists estimate that there are over 6,000 species of coral in the world.
The Great Barrier Reef off the coast of Australia is one of the most biodiverse regions on our planet.

The first two statements directly explain the process of coral bleaching and the factors that contribute to it, while the latter two provide background information that is less directly related to the phenomenon itself.