Adichotomous key is a series of choices between alternative characteristics that is used to identify organisms. check all features of a dichotomous key. choices are based on characteristics that are not easily observed or known. there are usually two choices. typically, each choice can be answered “yes” or “no.” choices are ambiguous so that categories can include many species with different characteristics.

A dichotomous key includes the following features: there are usually two choices and typically, each choice can be answered “yes” or “no.”

A dichotomous key is a classification system used to classify by indicating the presence or absence of a particular phenotypic trait.

In conclusion, a dichotomous key includes the following features: there are usually two choices and typically, each choice can be answered “yes” or “no.”

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phylogenetic tree is the tree of life or evolution tree. it shows the different branches of evolution. the sequence goes like tissues - coelom - backbone - endoskeleton - segmentation