Given these structures:

1. whole muscle
2. muscle fiber (cell)
3. myofilament
4. myofibril
5. muscle fasciculus
choose the arrangement that lists the structures in the correct order from the largest to the smallest structure.

a) 1,5,2,4,3 b) 1,2,5,4,3 c) 1,5,2,3,4 d) 5,1,2,4,3

a) 1,5,2,4,3

Explanation: skeletal muscles function together with the skeleton to allow movement .a muscle is enclosed by a layer of connective tissue ,the epimysium.this connective tissue surrounds Smaller bundles called the fasciculi.

These fasciculi consist of still smaller multinucleated fibres.

These fibres consists of myofibrils which also consists of small protein filaments,the actin and myosin filaments.the myosin filaments are thicker than the actin filaments.

then that particular organisms become extinct.