Human beings seek to build dams because because dams acts as water reservoirs. They are useful in releasing water in a controlled way, thus floods can be avoided. Moreover, hydroelectricity can be produced from this stored water. Helpful in irrigation process due to controlled release of water. Now-a-days these reservoirs of water are also utilized in aquaculture practices.
Answer: proteins
Explanation:
The myofibril proteins are organized into filaments of varying sizes thick and thin and is called myofilaments.
I have not learned that yet i wish i could help so sorry though good luck