Achemical that is released by an animal as a signal to other members of the same species is called a pheromone. t or f

that is true. its like when a horse goes into heat. *ready to mate*

Colonial organisms are the result of many identical individuals joining together to form a colony. These cells are partly dependent on each other to start with. But, later evolutionary events resulted in the obligatory relationships among them resulted in multicellularity.