The newt is generally a solitary animal but some species of newt are known to hibernate in groups. Newts generally come together during the mating season which tends to take place in early spring. People commonly keep fire-bellied newts, paddle-tail newts and crocodile newts as pets.The newt is seen as a good pet to keep as the newt is small and quiet and some species of newt, like the great crested newt native to Europe can get to 27 years old.eople commonly keep fire-bellied newts, paddle-tail newts and crocodile newts as pets. The newt is seen as a good pet to keep as the newt is small and quiet and some species of newt, like the great crested newt native to Europe can get to 27 years old.
They are called sacromeres and are the smallest functional 'contractile unit' of a muscle cells that includes myofibilaments, such as actin and myosin.
muscle, muscle fibers, myofibrils, sarcomeres, thick and thin filaments. muscle, myofibrils, muscle fibers, sarcomeres, thick & thin filaments. muscle, sarcomeres, muscle fibers, myofibrils, thick and thin filaments. The ____________________ is/are the functional unit of muscle.