Aperson breaks a bone and has it set and put in a cast, but it does not heal. what would be the best thing for the doctor to investigate as a possible cause?

The doctor should investigate about the osteoblasts that should have been constructing the new bone.

Explanation:

The cells, which form bones by discharging the extracellular matrix for bone tissue are known as osteoblasts. These cells discharge the constituents like inorganic electrolytes and collagen fibers that together produce the matrix of the bone tissue. The inactivity or absence of these cells could inhibit the production of new bone post-fracture. Hence, doctors should investigate osteoblasts.

the organisms are not adapted to live in some communities or habitats.

ans.

gregor john mendel is known for study of inheritance in pea plants. he used garden pea plant for his study, having alternative traits for various characters. he performed cross-breeding in pea plants to check how characters are transmitted between parents to offspring, such as cross between pure tall and pure dwarf plant. mendel studied the inheritance patterns in pea plants for various generations.

thus, the correct answer includes options and f).