The antenna was the first arthropod ventral appendage to evolve non-leg identity. Models of antennal evolution have been based on comparisons of antennal and leg identity specification mechanisms in Drosophila melanogaster, a species in which appendages develop from highly derived imaginal discs during the larval period. We test for conservation of the Drosophila antennal identity specification...

The objective of this study was to evaluate the phytochemical, antimicrobial, and insecticidal properties tannins derived from Cydonia oblonga fruit.Qualitative quantitative methods were used for determination phytochemicals fruits. fruit extracted using solvents salts, their antimicrobial activity against S. aureus ATCC 25923 E.coli 25322 C.albicans investigated.The lethal effect extract evalu...