Cladogram and Dichotomous key

Front

What is a cladogram?

Back

A cladogram is a diagram that shows the evolutionary relationships among various biological species based on their shared characteristics.

Front

What is the purpose of a dichotomous key?

Back

A dichotomous key is a tool that allows the identification of organisms by answering a series of questions that lead the user to the correct name of a given item.

Front

What characteristics are used to identify the American Robin?

Back

Head color, Beak shape, and Beak Color.

Front

What common characteristic do all animals to the right of the hagfish have?

Back

Jaws.

Front

Which characteristic distinguishes arachnids from insects?

Back

Presence of antennae.

Front

What is the significance of shared traits in a cladogram?

Back

Shared traits indicate common ancestry and help in understanding evolutionary relationships.

Front

How do you read a dichotomous key?

Back

You start at the first question and follow the path based on your observations until you reach the identification of the organism.

Front

What is the difference between a cladogram and a phylogenetic tree?

Back

A cladogram shows relationships based on shared characteristics without indicating time, while a phylogenetic tree includes time and evolutionary distances.

Front

What are the main groups of organisms classified in a cladogram?

Back

Organisms are classified into groups called clades, which include an ancestor and all its descendants.

Front

What is a characteristic of organisms in the class Insecta?

Back

Insects typically have three body segments: head, thorax, and abdomen.