HERE IS AN IMAGE OF RED BLOOD CELLS (ERYTHROCYTES). THEY ALWAYS HAVE A DISTINCTIVE BICONCAVE DISC SHAPE. THE CELLS CONTAIN NEITHER NUCLEI, NOR OTHER ORGANELLES, BUT ARE PACKED WITH HEMOGLOBIN. A.WHAT IS THE FUNCTIONAL ADVANTAGE OF GIVING UP ALL OFTHE STRUCTURES THAT WOULD USUALLY BE FOUND IN A EUKARYOTIC CELL?B. WHAT IS THE ADVANTAGE OF HAVING A BICONCAVE STRUCTURE?

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.