Which of the following is the composition of thick myofilaments? A. Actin, tropomyosin and troponin B. Tubulin and RNA
C. Actin, myosin and troponin
D. Actin, myosin and tropomyosin​

all soils contain mineral particles, organic matter, water and air the combinations determine the soil's properties – its texture, structure, porosity, chemistry and color. soil is made up of different-sized particles. sand particles tend to be the biggest.

exposure to hazardous carcinogens and toxic substances can cause breathing problems, such as copd and various types of cancer. it also increases the risk of heart attacks and strokes and has serious (but no less unattractive) side effects, such as aging, yellow teeth, a terrible smell and damage to the vocal cords.