Secular Trend Refers To

question 50

Multiple Choice

Secular trend refers to:

• A)a change in religious ideas
• B)a tendency for succeeding generations to,on the average,mature faster and be larger
• C)an increase in the rate of mitosis due to radiation
• D)a change in the distribution of any trait due to prolonged migration and interbreeding

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Definitions:

Earliest Fossils

The oldest known remnants or impressions of ancient organisms preserved in rock.

Own Species

The specific group of organisms to which an individual belongs, identifying it from others in terms of genetics and morphology.

Million Years Ago

A unit of time used in geology and paleontology to denote periods that are millions of years in the past from the present day.

Stromatolites

Layered bio-chemical structures formed in shallow water by the trapping, binding, and cementation of sedimentary grains by microorganisms, mainly cyanobacteria.