Проанализируйте выделенные формы глагола по образцу:
Model: was made - Past Simple Passive (make)

1. Is devoted
2. Is (still) considered
3. Are (still) needed
4. Was (recently) noted
5. Was (first) isolated
6. Is followed

1.Is devoted - Present Simple Passive ( devote )
2.Is( still) considered - Present Simple Passive ( consider )
3. Are (still) needed - Present Simple Passive ( need )
4. Was (recently) noted - Past Simple Passive
5. Was (first) isolated - Past Simple Passive
6. Is followed- Present Simple Passive.