Diatomaceous earth can be used as a pest control because _____

Which among the following are incorrect statements?

All protozoans are either parasitic or predators. They depend on other animals for their food.

Viruses in animals contain both RNA and DNA.

Dianoflagellates contain ____

Diatoms are grouped under _____

Which among the following is incorrect about Dikaryon?

Symbiosis between honey bee and flowers is an example of _____