How could plate tectonic movements affect the evolution of life?

Organisms within a population must compete for resources to survive

Plz ! what does it mean for an allele to be dominant?

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