Jellyfish Jellyfish are not really fish. They are invertebrate animals. This means that unlike fish or people, they have no backbnoes. In fact, they have no bones at all. Jellyfish have stomachs and mouths, but no heads. They have nervous systems for sensing the world around them, but no brains. Some jellyfish can glow in darkness. The light is made by a chemical reaction inside the jellyfish. Scientists believe jellyfish glow for several reasons. For example, they may glow to scare away predators or to attract animals they like to eat. Most jellyfish live in salt water, apart from a few types that live in fresh water. Jellyfish are found in oceans and seas all over the world. They live in warm, tropical seas and in icy waters near the North and South poles.
Choose the correct answer based on the test above. 1. Which one creates Jellyfish's light? a. white blood b. nervous system c. chemical reaction d. salt water 2. Based on the text, we know that .... a. they belong to invertebrate animals b. they have heads like other animals c. their brain helps them find the food d. they cannot live in fresh water 3. What is the text above? a. jellyfish b. kind of all fish c. all invertebrate animals d. some kinds of sea animals 4. "Some jellyfish can glow in darkness by making their own light." (paragraph 3) The word "glow" in the sentence means .... a. move b. produce c. appear d. shine 5. "They have nervous systems for sensing the world ...." (paragraph 2) The word "They" in the sentence refers to .... a. stomachs b. jellyfish c. mouths d. heads
2. a
3. a
4. d
5. b
2. a. they belong to invertebrate animals
3. a. jellyfish
4. d. shine
5. b. jellyfish
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