This link should help it has all the information you need...
https://arxiv.org/pdf/1511.08792.pdf
Answer:
True
Explanation:
A myofibril also called muscle fibril found in muscle cells, it is composed of thick and thin filaments of protein Myosin and Actin respectively.
Is the one used in textbook today
<span>köppen system of climatic classification is most used classification. Climate is the characteristic condition of the atmosphere near the earth surface at a certain place on earth. Most of classification today are based on this classification. Koppen divided the earth into climatic regions that coincided with world pattern of vegetation and soils. These recognize the five major climate types based on the annual precipitate and average temperature.</span>