Elabora un esquema de un organismo desde el nivel biológico más pequeño: la célula. Por ejemplo, ¿cómo está organizado un perro?, ¿una araña? Puedes elegir el organismo que tú quieras.

Anton created a chart listing different types of materials. which best complete the chart?

List five ways we are indebted to phytoplankton

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.