Answer:
Smooth muscle:
At cellular level these muscles are cylindrical in appearance. There cells are unbranched. These are non striated.
Skeletal muscles:
These Muscles at cellular level appears as cylindrical and also they are unbranched. These are striated at cellular level.
Cardiac muscle:
These muscles are like skeletal muscles and smooth muscles in the sense of their cylindrical nature but these muscles are branched in contrast to others. These are striated.
Explanation:
Other differences are attached with this answer please find attachment.
I would hazard a guess to say that they aren't as good at it because they don't need to be. In lakes and even the ocean, the state of the environment would stay relatively constant negating the need for homeostasis or regulating salt levels.
Answer:
Homology
Explanation:
This is termed homology because it involves the existence of similar structures that do not necessarily perform the same functions found in different species. These structures in particular evolve from a common ancestry lineage. An example can be seen in the case of the wings of bats and the hands of humans.