What role do state legislatures and the u. s. congress play in the policy-making process?

 The states and the federal goverment need to be good partners when it comes to the process of making policies. The states contribute with support, collecting datas and determinations, also some actvities helping the policy enforcement. For all these, the federal goverment send financial support. The Congress passes regulation and the policy is adopted.

it's not the readmission

interdependence is when all participating groups and individuals depend on each other. if you depend on one anothers goods, you end up trading in order to get the items you're looking for. (for ex: if i have food and you have water, we trade in order to depend on each other to live)