:) Ahem,
most fishes move by alternately contracting
paired sets of muscle on either side of their backbone.
none
Muscles are exercised, if exercised enough, the muscles will tear, and be repaired, which is how the body becomes stronger.
After a while of swimming, your muscles use lactic acid. It uses it through Lactic acid fermentation. It results in more energy.
depends on need running for cardio ;heart rate swimming for low impact on joints while building leaner muscles
The pectoral fin on a shark helps with steering and stability while swimming.
A uropod is used for swimming. Telson does the same thing.
No. While the shape of your body does depend on your muscles, it is not their function. Muscles regulate movement and posture. If anything the skeletal system retains structure.
i thik it helps the muscles move while u chew
The best way to exercise without building "short muscles" is swimming, running and other cardiovascular exercises. The best possible exercise for your joints, while toning your body is swimming.
I would say any exercise will eventually build muscle. In the case of swimming, muscles will be strengthened, and therefore built all over the body, but not to the point of being massive, depending on how much swimming is done on a regular basis. If swimming is done regularly, muscles will be toned and any excess weight lost. The whole body is used for buoyancy and movement during swimming and is an excellent all over exercise. Heart muscle and lungs will strengthen too. Respiration will become more even and have a positive effect all over the body.Most exercises will build muscles. Swimming will help build muscles but if will not be the most aesthetically obvious for quite a while if that is your aim.
Involuntary muscles are muscles that work without conscious control, such as those in the heart and digestive system. Voluntary muscles are muscles that we can control, like those in our arms and legs. Involuntary muscles function automatically to keep our body working properly, while voluntary muscles allow us to move and perform actions intentionally.
Jawless fishes are voracious feeders while cartilaginous fishes are predators with a various diet.