The key evolutionary development of animals seen for the first time in sponges is that of Multicellularity. A Multicellular organism has a longer lifespan than an unicellular organism and since it has multiple cells, it can perform more functions. Sponges do not have distinct circulatory, respiratory, digestive, and excretory systems – instead the water flow system supports all these functions.
Answer:
es la persona que ejecuta la accion esta omitida pero no hay duda de su existencia
Explanation:
Para ejecutar al sujeto en una oracion existen algunos indicios .La conjugacion del verbo, los pronombres,sujeto expreso en la oracion previa
POR EJEMPLO.
corremos todos los dias*sujeto táctil nosotros *
lo conoci hoy *sujeto táctil yo*.
The fragility of cancer cells when they undergo division serves as a critical intervention point in chemotherapy. ... Despite being the shortest phase of the cell-cycle, mitosis ... Therefore, there is a strong interest in developing novel drugs that do not affect .... cells. Plk1 is the most thoroughly studied member.
