Life in Goral Reefs 1 Coral reefs are often called "the rain forests of the sea."Reefs have an abundance of life forms. Many different animals find food and shelter in a coral reef. A reef has a complex food web. Colorful fish, eels,octopuses, sponges,, sharks, and sea turtles are some of the animals that call a reef home. 2 Reefs are made up of the hard shells of millions of corals. The hard shells of corals are called exoskeletons. As corals live and die, their exoskeletons create a giant, rocky honeycomb. 3 Living things in a coral reef depend on each other to survive. For example, corals and microscopic algae called zooxanthellae work together to build a reef. 4 Zooxanthellae live in the corals' soft tissue There they are protected and get the sunlight they need to grow. In turn, the zooxanthellae provide the coral with oxygen and nutrients. 5 The zooxanthellae give the corals a rainbow of colors .When corals lose their zooxanthellae, they bleach, or turn white .And the corals will die unless the zooxanthellae are replaced. Scientists think that higher sea temperatures may be one reason why corals lose their color. 6 People around the world rely on reef fish and other animals for food. But in some places, people have overfished People also use chemicals that pollute the ocean. 7 There has been a huge decline in the world's coral reefs since 1996. Today many reefs around the world are now protected areas. Scientists are trying to keep reefs healthy. FIND TEXT EVIDENCE Paragraph 1 Read the highlighted central idea in paragraph 1. Circle the sentence that uses examples to süpport the central idea. Paragraphs 2-3 Underline the details that tell you what makes up a reef. What two living things work together to build a reef? Paragraphs 4-5 Draw a box around what will happen if the zooxanthellae die and are not replaced. Paragraphs 6-7 What may have caused the decline in coral reefs? Take Notes Paraphrase the central idea of the source and give examples of supporting details.

Question

Life in Goral Reefs 1 Coral reefs are often called "the rain forests of the sea."Reefs have an abundance of life forms. Many different animals find food and shelter in a coral reef. A reef has a complex food web. Colorful fish, eels,octopuses, sponges,, sharks, and sea turtles are some of the animals that call a reef home. 2 Reefs are made up of the hard shells of millions of corals. The hard shells of corals are called exoskeletons. As corals live and die, their exoskeletons create a giant, rocky honeycomb. 3 Living things in a coral reef depend on each other to survive. For example, corals and microscopic algae called zooxanthellae work together to build a reef. 4 Zooxanthellae live in the corals' soft tissue There they are protected and get the sunlight they need to grow. In turn, the zooxanthellae provide the coral with oxygen and nutrients. 5 The zooxanthellae give the corals a rainbow of colors .When corals lose their zooxanthellae, they bleach, or turn white .And the corals will die unless the zooxanthellae are replaced. Scientists think that higher sea temperatures may be one reason why corals lose their color. 6 People around the world rely on reef fish and other animals for food. But in some places, people have overfished People also use chemicals that pollute the ocean. 7 There has been a huge decline in the world's coral reefs since 1996. Today many reefs around the world are now protected areas. Scientists are trying to keep reefs healthy. FIND TEXT EVIDENCE Paragraph 1 Read the highlighted central idea in paragraph 1. Circle the sentence that uses examples to süpport the central idea. Paragraphs 2-3 Underline the details that tell you what makes up a reef. What two living things work together to build a reef? Paragraphs 4-5 Draw a box around what will happen if the zooxanthellae die and are not replaced. Paragraphs 6-7 What may have caused the decline in coral reefs? Take Notes Paraphrase the central idea of the source and give examples of supporting details.

Answer 1

1. "Many different animals find food and shelter in a coral reef."2. "Reefs are made up of the hard shells of millions of corals" and "corals and microscopic algae called zooxanthellae work together to build a reef."3. "When corals lose their zooxanthellae, they bleach, or turn white. And the corals will die unless the zooxanthellae are replaced."4. "People around the world rely on reef fish and other animals for food. But in some places, people have overfished People also use chemicals that pollute the ocean."5. Coral reefs are home to a variety of life forms and are made up of the hard shells of millions of corals. The variety of animals that live in a reef, the role of corals and zooxanthellae in building a reef, and the potential causes of the decline in coral reefs.

Answer 2

This question is asking for textual evidence from the given paragraphs. The first part of the question asks for the sentence in paragraph 1 that uses examples to support the central idea. The central idea in paragraph 1 is that coral reefs are home to a variety of life forms. The sentence that supports this idea is "Many different animals find food and shelter in a coral reef." The second part of the question asks for the details in paragraphs 2-3 that explain what makes up a reef and what two living things work together to build a reef. The details are "Reefs are made up of the hard shells of millions of corals" and "corals and microscopic algae called zooxanthellae work together to build a reef." The third part of the question asks for the details in paragraphs 4-5 that explain what will happen if the zooxanthellae die and are not replaced. The detail is "When corals lose their zooxanthellae, they bleach, or turn white. And the corals will die unless the zooxanthellae are replaced." The fourth part of the question asks for the details in paragraphs 6-7 that explain what may have caused the decline in coral reefs. The detail is "People around the world rely on reef fish and other animals for food. But in some places, people have overfished People also use chemicals that pollute the ocean." The final part of the question asks for a paraphrase of the central idea of the source and examples of supporting details. The central idea is that coral reefs are home to a variety of life forms and are made up of the hard shells of millions of corals. The supporting details are the variety of animals that live in a reef, the role of corals and zooxanthellae in building a reef, and the potential causes of the decline in coral reefs.

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