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Just for fun, you thought that it might be interesting to see how your 3-month-old stepbrother would act if you showed no emotion at all and simply looked at him for a few minutes.How did your stepbrother react?
Evolutionary Importance
The significance of a trait, organism, or event in influencing the course of evolutionary changes within species over time.
Representative Clade
A group of organisms consisting of a common ancestor and all its lineal descendants, representing a single branch on the tree of life.
Supergroup
In biology, a large grouping of diverse organisms sharing common evolutionary traits, above the level of kingdom in the taxonomic hierarchy.
Rhizarians
A group of mostly unicellular eukaryotic organisms, characterized by their amoeba-like cell structure, often possessing elaborate shell-like coverings.
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