Tympana and chordotonal organs may both function as sound receptors. Exogenous rhythms persist even in the absence of entrainment cues from the environment. Substances in the frass produced by bark beetles attract predators and parasites to trees that are infested by these beetles. D. Yolk deposition in eggs can begin 9. B. Fly D. Walk 11.
Ants remember a food trail by the location of landmarks along the way.
A male empiid fly courts a female for 20 minutes and then gives up after he fails to elicit any response. Give an example of a tropic hormone. Give an example of a mechanoreceptor. Give an example of a fixed action pattern. Give an example of a neurohemal organ.