Giant Squid- What Autopsies Reveal

What is the heading for pages 22-25?

• What Autopsies Reveal

• Giant Squid

• Ocean Detective on the Chase

• Meet the Squid Hunter

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“Circular rings in statoliths can be used to estimate a squid’s age.”

What is the meaning of estimate in this caption?

• a. find the exact number of

• b. guess as closely as possible

• c. fix a problem with

• d. change the number of

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Which words from the text help the reader understand

estimate?

• a. “rings are located in tiny ear bones called statoliths”

• b. “They are called daily rings”

• c. “a new ring is laid down each day”

• d. “figured out that it lives about a year, possibly two”

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What do the two photographs of statoliths on page 23 show?

• a. One photo shows an entire statolith; the other shows the growth

  rings up close.

• b. One photo shows a statolith alone; the other shows its location

  on the squid.

• c. One photo shows the size of a statolith; the other shows its

  shape.

• d. One photo shows the front of a squid’s statolith; the other shows

  the back.

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What idea do the two photographs of statoliths help the

reader understand?

• a. that microscopes are important to scientists

• b. why giant squid need to keep their balance

• c. that growth rings form as part of statoliths

• d. why giant squid have two bones in their ears

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What main idea about giant squid have scientists learned

from statoliths?

• a. Scientists learned that giant squid have tiny ear bones.

• b. Scientists learned that giant squid are fast-growing animals.

• c. Scientists learned that a statolith’s bands can be seen with a

  microscope.

• d. Scientists learned that a statolith helps a squid stay balanced.

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What information from page 23 supports the answer the previous question?

• a. Giant squid have growth rings in their tiny ear bones, called

  statoliths.

• b. If a person stretches out next to a giant squid, the squid will be

  longer than the person.

• c. Scientists can use microscopes to look at statoliths and other

  parts of a giant squid.

• d. Growth rings show that giant squid grow to their full size in only

  one or two years.

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CCSS.RI.3.2

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The words under the photo on page 24 says, "The eye of a giant squid is the largest in the natural world." What text feature is this?

• photo

• index

• table of contents

• caption

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Many marine animals, such as jellyfishes, glow in the dark to...

• attract mates or food

• scare away predators

• find their way in the blackness of the deep ocean

• look cool

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Which sentence best answers this question:

How do deep-sea creatures see in the dark?

• Below a depth of 660 to 3,300 feet, the ocean is in permanent darkeness.

• More than three-quarters of deep-sea animals are bioluminescent- they produce their own living lights, like fireflies.

• Clyde wondered if giant squid also glow in the dark.

• The blinking lights on tiny microscopic animals look like fairy dust.

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