Because of Age Estimates of the Tiktaalik Fossil Species,at Approximately

question 55

Multiple Choice

Because of age estimates of the Tiktaalik fossil species,at approximately 380 mya,it lived

• A) at the same time, in the Mesozoic era, as early dinosaurs, mammals, and early conifer trees.
• B) None of these answer options correctly places the geologic time scale context of Tiktaalik.
• C) in the Phanerozoic eon, and the Devonian era, before dinosaurs and mammals appeared.
• D) during the Precambrian, when only primitive species were found in the fossil record.
• E) after the widespread extinction of dinosaurs, marking the expansion of more modern, living species in the Cenozoic era.

---

Definitions:

Alkanes

Saturated hydrocarbons containing only single bonds between carbon atoms, generally characterized by the formula CnH2n+2.

Commercial Uses

Applications or purposes of a product, substance, or technology in various industries for profit generation and consumer needs fulfillment.

Intermolecular Force

Forces of attraction or repulsion which act between neighboring particles (atoms, molecules, or ions).

Alkane Molecules

Compounds made up of only hydrogen and carbon atoms arranged in a tree structure with single bonds.