Which best describes the trophic level of an organism?

a. the number of calories it consumes
b. the amount of energy it produces
c. its life cycle from birth to death
d. its position in a food chain

Do the following statements describe actin, myosin, both of the proteins or neither of the proteins? (a) contains a binding site for calcium (b) found in the i band (c) exists in a globular (g) form and a filamentous (f) form (d) contains a binding site for atp (e) is a component of the thin filament (f) is a component of the thick filament