In chemistry? Well, technically speaking, everything is made up of electrons, protons, and neutrons so in a way yes, According to a subatomic particle theory. Its really just how they are arranged in a molecular "structure" though. So I guess all structures are made up of the same thing microscopically. When we go to the big picture though, they kind of form a fractal or something like that, which we perceive as molecules or actual elements
Basically they're all the same except for the shape of the bones.
Structural isomers are substances having the same formulas but different structures.
no
homologous structures
All structures of the same type must be of the same size because they all have exactly the same member types. If they were all different sizes it would be impossible to know how much memory to allocate to them.
Homologous structures are structures that are similar in related organisms because they were inherited from a common ancestor. These structures may or may not have the same function in the descendants. Figure below shows the hands of several different mammals. They all have the same basic pattern of bones. hope it helped
All cells ARE NOT the same shape. Cells can be of diverse structures.
Same way it affects all structures - heat and sound is produced, and some material is lost due to ablation (being rubbed away).
yes, because they have common ancestors and developed from same embroyic structures.
There are different types of cells, but the structures are basically same, with similar organelles and other structures.
Homologous structures
the same as a hurricane