Answer:
<em>the elements are listed in order of increasing atomic number.</em>
Answer
Its marine animal.
Explanation
Cephalochorates are small marine animal with unique features like segmented body and have notochord which are from head to tail and persist through out the life of this animal .They are present in modern oceans in form of lencelets which is also called amphioxus. They have hollow dorsal nerve chord and gill slits. Unlike the other vertebrates the nerve chord is never replaced by vertebrae
Nephron helps the urinary system to rid off metabolic waste in our system.
Rust is a form of corrosion. It occurs on numerous kinds of metals, iron being one of them. Rust forms when iron oxidizes and absorbs water. Rust is brittle in nature.
Iron on the other hand is a malleable and ductile metal. It rusts because it combines with oxygen present in the air along with moisture.
Properties of oxygen are -it is tasteless, odorless and colorless diatomic gas. It combines with iron in the presence of moisture to form iron oxide or rust.