48. Which symbiotic relationship is this an example of? Mutualism
Scenario: Bacterial meningitis (caused by Streptococcus
pneumoniae) infects people. It is spread by direct, close contact
of bodily fluids. Symptoms inciude high fever, stiff neck and a
headache.

1.Mutualism
2Commensalism
3.Parasitism
4.Competition

Based on the observation that only male crickets produce a song, you hypothesize that a male's song is a form of communication to potential mates. you set up a simple experiment to test this hypothesis. in the laboratory, you place a male snowy tree cricket in enclosure a, which is adjacent to enclosureb. in enclosure b, you place other insects, one at a time, and observe their responses to the male's song. the enclosures are designed so that the two insects being tested cannot see or smell each other, but sound is transmitted from enclosure a to enclosureb.