la clase …………. se caracteriza por tener un esqueleto compuesto exclusivamente por espículas de carbonato de calcio.
cuál es la función principal de los poríferos
células de las que dependen las esponjas para su respiración y excreción
periodo histórico de la tierra de donde datan los primeros registros fósiles de animales invertebrados
la reproducción en algunos organismos pertenecientes al grupo de los cnidarios (como los Scyphozoos) se caracteriza por ser….
son el grupo hermano de los metazoos
en los equinodermos, tubo o área dispuesta radialmente por donde circula el agua
¿cómo se le llama a la capa externa que se forma en el proceso de gastrulación?
Verticales
células ofensivo-defensivas urticantes presentes en todos los cnidarios
los poríferos fueron considerados plantas por ser…
¿cómo se llaman los pólipos encargados de la captura de las presas en las fragatas portuguesas?
Clase del filo equinodermata que se caracteriza porque sus brazos no definen el disco central y su madreporito está ubicado en la zona oral
células adhesivas presentes en los tentáculos que utilizan los ctenóforos para capturar presas
se les llama …………….. a los animales a los cuales, en el desarrollo embrionar, el blastoporo da origen al ano
clase del filo porífera que tiene espículas de sílice con 6 radios y además son vítreas
nombre de la cavidad central que se forma cuando los blastómeros de la mórula se reagrupan
célula especializada encargada de la protección externa de los poríferos
¿cuál es la estructura que regula la cantidad de agua en el sistema de los equinodermos?
la cavidad celomática le brinda a los animales la capacidad de…
¿qué estructura formada en el proceso de gastrulación diferencia los animales triblásticos de los de los diblásticos?
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