1 How is the action of pressing a phone button with your finger achieved?
2 Why does prolonged use of a phone or tablet cause neck or finger pain?
3 How can neck pain caused by prolonged phone usage be prevented?
4 If it is necessary to use a phone for 10 hours, how can joint pain be avoided?
5 Some organisms cannot move freely and cannot gain the benefits of movement. How do these organisms address this issue?
6 Compare the composition of bone and cartilage.
7 What evidence indicates that bone contains cells?
8 If bone marrow is to be extracted, into which part of the bone should the syringe be inserted? Why?
9 What is the function of compact bone in the body?
10 Bones with a dense structure are harder and more resistant to impact. However, if all the bones in the body were made entirely of compact bone, what would be the drawbacks?
11 Animals of different heights have different body shapes, especially in the thickness of their limbs. Why?
12 If a "superhuman" were as tall as a 50-story building, their body structure could not resemble that of a normal human. Why?
13 If an alien species were as tall as a 50-story building but had a body structure similar to humans, what would you estimate is the reason?
14 Birds, given the same body volume, are much lighter than mammals. Why?
15 What are the benefits of birds having hollow bones?
16 What type of bird do you estimate might have non-hollow bones? Explain.
17 The surface of bones has many small holes. What do you think their function is?
18 Why is cartilage harder to repair than bone?
19 Bone tissue is constantly breaking down and reforming. Based on this phenomenon, why do you think older people are more likely to suffer from osteoporosis?
20 The formation of the axial skeleton in humans is primarily influenced by Earth's gravitational pull. Why might a chick fail to fully develop if its egg is sent into space immediately after being laid, but successfully hatch if the egg is sent into space after some time? Estimate the reason.