Because of the chlorophyll in them, more known as the little things called chloroplasts
C. it should have been researched by at lease two others
Investigating cricket will reveals that some specie of the insect produce a song by rubbing their legs or wings against each other. In those specie that sing only the male insect produce songs.
This observation can be taken to mean that the male song is a potential form of communication to potential mates.
I think the answer is the Anther.
FUNGI is the Kingdom of organisms that is usually multi-celled, heterotrophic, and has cell walls made of chitin, divided by openings called septa.
The other 5 kingdoms are Archaebacteria, Eubacteria, Protista, Plantae, Animalia.