Many of the protist species classified into the supergroup excavata are asymmetrical, single-celled organisms with a feeding groove \u201cexcavated\u201d from one side. this supergroup includes heterotrophic predators, photosynthetic species, and these?

The four Science Regents exams (Earth Science, Living Environment, Chemistry, and Physics) also include separately-scheduled lab practicals.
In New York, students have the opportunity to take Regents Exams in grades 9-12 and, when appropriate, in grade eight.