(2) (Of, or pertaining to) An organism that expresses the dominant gene (or allele). (ecology) (Of, or pertaining to) An organism or group of organisms having the most considerable influence or control in its ecological community among other organism.
Relevance. Rating Newest Oldest. Best Answer: Geological Period that lasted the longest: The Precambrian Era The Precambrian Era is the longest geological era beginning 4.5 billion years ago and lasting approximately 4 billion years. The Precambrian era is generally separated into two eons the first of which being the Archaean Eon.
Weegy: Paleozoic Era, also spelled Palaeozoic, major interval of geologic time that began 542 million years ago with the Cambrian explosion, an extraordinary diversification of marine animals, and ended 251 million years ago with the end-Permian extinction, the greatest extinction event in Earth history.Get an answer.ser: The Paleozoic Era is the longest time period in the history of Earth. true or falseWeegy: The Paleozoic Era is the longest time period in the history of Earth. Answer is TRUE. Expert answered|samth007|Points 27|.