Myosin heads have binding sites for see concept 50.5 (page 1124) myosin heads have binding sites for see concept 50.5 (page 1124) actin and calcium atp and actin tropomyosin and actin atp and calcium tropomyosin and troponin

The answer is; ATP binding site and Actin binding site.  When ATP is bound to its site in the head of the myosin the myosin is not attached to actin. Upon hydrolysis of the ATP, the myosin head changes conformation and attaches to its myosin site on the actin to form a cross-bridge between the two filaments.

a

explanation:

many plants naturally reproduce this way, but it can also be induced artificially. horticulturalists have developed asexual propagation techniques that use vegetative plant parts to replicate plants. success rates and difficulty of propagation vary greatly. monocotyledons typically lack a vascular cambium and therefore are harder to propagate.

the areas around the equator