Sharks have lived in the oceans for millions of years. Unlike most fish, their skeletons are made of cartilage, the same bendy material found in your nose and ears. What are shark skeletons made of?
- AScales
- BCartilage
- CHard bone
- DThin shell
Sharks have lived in the oceans for millions of years. Unlike most fish, their skeletons are made of cartilage, the same bendy material found in your nose and ears. What are shark skeletons made of?
Snakes flick their tongues in and out to pick up scents from the air. This helps them find food and sense danger. Why do snakes flick their tongues?
Crows are clever birds. Scientists have seen them use sticks as tools to pull insects out of tree bark. What have scientists seen crows do?
“The patient said he felt ‘as weak as a kitten’ after his long illness.” What does the patient mean?
“The word ‘biology’ comes from two Greek words: ‘bios’, meaning life, and ‘logos’, meaning study.” What does “biology” mean, according to the passage?
Paragraph: “Kiwi birds live in New Zealand. They cannot fly, even though they have small wings. Their soft feathers look more like hair. Many people enjoy hiking in New Zealand’s mountains. Kiwis come out at night to find food.” Which sentence does NOT belong in the paragraph?
“The ward needs at least one nurse for every four patients. Tonight there are 22 patients.” What is the smallest number of nurses needed?
“Every year, Grandpa planted one more apple tree. When people asked why, since he would not live to see them fruit, he smiled and said, ‘They are not for me.’” What does Grandpa’s answer suggest?
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