Which type of blood vessel serves as a blood reservoir?

Which type of organism is missing from the food web seen in the illustration? primary consumers decomposers primary producers secondary consumers

Environmental differences within ecosystems are generally caused by

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