Can flowers and turmeric papers also be called as indicators. Why?

Rain guage is also called as

Stamen is also called

Decomposers are also called as

C_(60) also called

Mitochondria are also called as

Which of the following is/are true about indicators ? (i) Hibiscus and turmeric papers are examples for natural indicators (ii) Phenolpthalein and Methyl orange are examples for Synthetic indicators (iii) Indicators show different colours in acidic and basic solutions (iv) These tell us whether a substance is acidic or basic

Ionic bond is also called

Inner complex is also called

DNA ligase is also called

Flowering plants are called