Question

the cells begin to multiply very quickly. as they do, they form the material that the animal needs to rebuild its missing limb.
these steps show how a salamander regenerates a missing body part: lost part, blastema forms, toes develop, new part.
other animals also have the astonishing power to regenerate body parts. sea stars can regrow missing arms. some sea stars can even grow missing bodies!
fill in the blank to explain what a \blastema\ is.
a blastema is a
new body part
missing patch of material
deeply wounded area
rounded group of cells

Explanation:

Para determinar qué es un blastema, se analiza el contexto de regeneración de tejidos en animales (como salamandras). Un blastema es un grupo redondeado de células que participan en la regeneración de partes del cuerpo. De las opciones, "rounded group of cells" coincide con la definición biológica de blastema.

Answer:

rounded group of cells