To which phylum does Balanogossus

To which phylum does Balanoglossus belongs?

a) Which of the following animals exhibit metagenesis? (Ascaris, Obelia, Earthworm, Crab) b) To which phylum does it belong ? c) Write any two features of the phylum.

To which phylum do sponges belong ?

To which phylum does star fish belong?

To which phylum does Trilobite belongs to? Name the period they evolved.

Observe the figure and answer the question To which phylum does the animal given below belong ?