Answer:
A) actin and myosin is a correct answer.
Explanation:
- Myofibrils are the contractile fiber and they are made of actin and myosin.
- Myofibrils are made of thick myofilaments and thin myofilaments.
- Thick myofilaments are made up of myosin whereas thin myofilaments are composed of actin.
- The functional unit of muscle is Myofibrils and contraction of muscle occurs due to myofibril, when the filaments actin and myosin interact with each other.
Thus Myofibrils are made primarily of (A) actin and myosin.
In a transverse wave, the particles are displaced perpendicular to the direction the wave travels. In a longitudinal wave the particles are displaced parallel to the direction the wave travels.
Answer:
The answer is Alzheimer's disease.
Explanation:
The Alzheimer's disease has three stages, which are
*Mild Alzheimer's disease, this is the early stage.
*Moderate Alzheimer's disease, this is the middle stage.
*Severe Alzheimer's disease, this is the last stage.
The functions of lipids include storing energy, signaling, and acting as structural components of cell membranes.
