The Adaptability of Bone Evolutionarily speaking, lighter bones make for lighter

Question

The Adaptability of Bone Evolutionarily speaking, lighter bones make for lighter skeletons to carry around and thereby offering an animal greater speed. Heavier bones require individuals to invest in more muscles and energy in moving around. While there are general bone growth-promoting factors such as growth hormone, each bone remains capable of growth in response to how it is used. Bones are flexible, dynamic organs in that bone mas changes to match the level of activity endured by each bone. This is well demonstrated among tennis players in whom the arm wielding the tennis racket, or dominant arm, may contain bones that are up to 30% larger (but not denser) than those in the opposite arm. Toward arriving at a skeleton that best matches one's lifestyle, it is normal for bones to either add or subtract bone mass, depending on bone usage. Three identical triplets, Alice, Jane, and Hannah are living different lives Alice works for a package delivery company, frequently carrying and moving loads of all sorts up flights of stairs and around office buildings. She is a very active person and enjoys moving and lifting over taking on more sedentary work. Jane is an accountant. She works for hours on end and often late into the nighthunched over her computer screens, monitoring budgets and organizing expensesShe is up for promotion again after having performed her work with great dedication and care Hannah has been recovering from severe spinal and head injury after a car accident. She has undergone three months of strict bed rest and has just been released from treatment to resume her normal life. She is now under the care of a physical therapist. Place the labels under the column under which they most appropriately fit. bone resorption dominates ov It risk of bone osteocla activity ma predominate osteoblast activity predominates activity may predominate bone growth lowest overall risk for highest overall bone m Osteoporosis activity predominate bone ma increasing Alice Jane Hannah near the Hannah during recovery end of bed rest from bed rest

Explanation / Answer

Alice Jane Hannah near the end of bed rest Hannah during recovery from bed rest Osteoblast activity predominates. At risk of bone loss. Osteoblast activity may predominate. Bone resorption dominates overdeposition. Bone growth definitely increasing. Osteoclst activity may predominate. Lowest overall bone mass. Osteoclast activity may predominate. Highest overall mass. At risk for osteoporosis.

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