Question

A confused friend from your course has made a Halloween costume that is suppose to show one animal phylum. It has a hard outer shell and a water vascular system. You point out that the costume combines features of

Answer 1

The Halloween costume combines features of the animal phyla Cnidaria and Porifera, with a hard outer shell and a water vascular system.

Step-by-step explanation:

The Halloween costume combines features of the animal phyla Cnidaria and Porifera. The hard outer shell is a characteristic of phylum Porifera, which includes sponges. The water vascular system is a characteristic of phylum Cnidaria, which includes animals like jellyfish and corals. So, the Halloween costume represents features of both phyla, combining a hard outer shell and a water vascular system.