The Oldest Multicellular Organisms from the ________ Are Known Only

question 103

Multiple Choice

The oldest multicellular organisms from the ________ are known only as imprints and have no hard body parts for any of the fauna.

• A)Azoic Acasta Gneiss
• B)Middle Cambrian Burgess Shale
• C)Permo-Triassic massive extinction event
• D)Precambrian Ediacaran Fauna

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Definitions:

Independent Samples

Independent samples refer to two or more groups of observations that are collected from separate populations and are not dependent on each other.

Wilcoxon Rank-Sum Test

A nonparametric statistical test used to compare two independent samples to determine if they come from the same distribution.

Nonparametric Test

A statistical test that does not assume a specific distribution for the variable being analyzed.

Simple Random Samples

A subset of a statistical population in which each member of the subset has an equal probability of being chosen.