Question

en un rectangulo la longitud de los lados es la mitad de la longitud de los lados largos. si el perimetro del rectangulo vale 90 cm , que medida tiene cada lado ?

Answer 1

Answer:

A pheromone (from Ancient Greek φέρω phero "to bear" and hormone) is a secreted or excreted chemical factor that triggers a social response in members of the same species. Pheromones are chemicals capable of acting like hormones outside the body of the secreting individual, to impact the behavior of the receiving individuals.[1] There are alarm pheromones, food trail pheromones, sex pheromones, and many others that affect behavior or physiology. Pheromones are used from basic unicellular prokaryotes to complex multicellular eukaryotes.[2] Their use among insects has been particularly well documented. In addition, some vertebrates, plants and ciliates communicate by using pheromones.