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HoTs (Higher Order Thinking Skills) questions
Ostrich being a bird cannot fly whereas a cockroach being an insect can fly as well as walk. How?Why cockroach exhibit such an adaptation? How are these adaptations useful to both cockroach
and ostrich?
2. You must have seen a person suffering from fracture either on hands or on legs. Such people have
cast (or plaster) on the fractured area. How do you think a cast would help such people? Can we
conclude from this that bones are able to heal on their own? If yes, then how? Justify your answer.
3. List some of the delicate and strong bony structures in your body.
Answers
Answer:
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Explanation:
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Answer:
1) Ostriches, emus, cassowaries, rheas, and kiwis can't fly. Unlike most birds, their flat breastbones lack the keel that anchors the strong pectoral muscles required for flight. Their puny wings can't possibly lift their heavy bodies off the ground.
The body and legs of cockroaches have hard coverings forming an outer skeleton. The muscles of the breast connected with three pairs of legs and two pairs of wings help the cockroach to walk and fly. ... They fly by flapping their wings.
2)Casts and splints are orthopedic devices that are used to protect and support broken or injured bones and joints. They help to immobilize the injured limb to keep the bone in place until it fully heals. Casts differ from splints because they provide more support and protection for a limb that is injured or broken.
Plaster casts are made up of a bandage and a hard covering, usually plaster of Paris. They allow broken bones in the arm or leg to heal by holding them in place, and usually need to stay on for between 4 and 12 weeks. Taking good care of your cast will help ensure a better recovery.
3)The lacrimal bone is perhaps the most fragile bone of the face and one of the smallest bones in the body. Spanning between the middle of each eye socket, each lacrimal is thin and scalelike and serves as support for the eye. The pair of lacrimal bones are two of the fourteen facial bones.
The femur bone is the longest and strongest bone in the body. Located in the thigh, it spans the hip and knee joints and helps maintain upright posture by supporting the skeleton. The humerus bone is in the upper arm and spans the shoulder and elbow joints.In anatomy, the mandible, lower jaw or jawbone is the largest, strongest and lowest bone in the human facial skeleton. It forms the lower jaw and holds the lower teeth in place. The mandible sits beneath the maxilla. ... It is connected to the temporal bone by the temporomandibular joint.
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