Carl H. Eigenmann an ichthyologist wrote Cave vertebrates of America: a study in degenerative evolution (1909) in which he concluded that cave evolution was essentially degenerative. The entomologist William Morton Wheeler and the Lamarckian Ernest MacBride (1866-1940) also advocated degenerative evolution.
fumaric acid - a colorless crystalline acid with a fruity taste; used in making polyester resins. acid - any of various water-soluble compounds having a sour taste and capable of turning litmus red and reacting with a base to form a salt. Translations. FumarsÃ¤ure
Ferrous fumarate or iron(II) fumarate is the salt of fumaric acid. Molecular mass of this compound is C 4 H 2 FeO 4, and it has a molar mass of 169.9. Following is the structure of ferrous fumarate. Ferrous fumarate is a reddish orange powder.