Because of federalism under the reserved powers clause; anything not stated as a responsibility of the federal government by the constitution (enumerated powers) is basically a power of the states/local government- the 10th amendment.
From the options available in the answer, the career that you cannot pursue with just a vocational school degree is (D) dentist.
To become a dentist, you need a Medical Doctor degree, which means that you will need to study in a four-year university to receive a Bachelor’s degree, before continuing to pursue the Medical Doctor degree for an additional four years.
Littoral zone is closest to shore
Limnetic zone is freshwater and is shallow near shore
Profundal shore is the deep zone
Bethic zone is lowest level of body water such as an ocean
I would say 6-8 sentences
