-humerus femur
A They both attach their respective limbs to the axial skeleton.
B. They both have similar joints at each end.
C. They both are extremely strong and made only of compact bone.
OD. They both have hollow spaces filled with bone-generating cells.
E.
They both protect vital organs.

The scientific method is a series of steps followed by scientific investigators to answer specific questions about the natural world. it involves making observations, formulating a hypothesis, and conducting scientific experiments.the steps of the scientific method are •observation-the first step of the scientific method involves making an observation about something that interests you•question-once you've made your observation, you must formulate a question about what you have observed. •hypothesis-once you've made your observation, you must formulate a question about what you have observed. •experiment-once you've developed a hypothesis, you must design and conduct an experiment that will test it.•results-the results are where you report what happened in the experiment. •conclusion-the final step of the scientific method is developing a conclusion.i hope that this you : )

The correct answer is amu.