Which Structure Below Represents an Ether

question 36

Multiple Choice

Which structure below represents an ether?

---

Definitions:

Exoskeleton

A rigid external covering for the body in some invertebrate animals, especially arthropods, providing both support and protection.

Echinoderm

A phylum of marine animals known for their radial symmetry and unique water vascular system, including starfish and sea urchins.

Evolutionary Relationships

The connections among different species or organisms that can be traced back to a common ancestor, explored through genetics, physical characteristics, and other biological data.

Amniotes

Terrestrial vertebrates: reptiles, birds, and mammals; animals whose embryos are enclosed by an amnion.