0
A dichotomous key is an outline of a classification system that seeks to identify common organisms (usually trees, flowers, birds or other groups of similar organisms) by systematically evaluating individual characteristics. The name is derived from what it does - provides the instructions (key) for separating organisms into two ("di") groups and then subdividing those groups into two until only one organism is left in the group.
Wiki User
∙ 10y ago
Wiki User
∙ 14y agoDichotomous keys only use 2 choices out of simplicity. Think of it this way. If you were to chart the graph, it would look like an upside down tree of some sort. Now, if each branch made 5 other branches, after three questions there would be 5*5*5 or 125 different things the author will have to fill out. There arekeys that use more than two choices, and they are called
Wiki User
∙ 10y agoThat's what dichotomous means. If it offered more choices it wouldn't be dichotomous.
Wiki User
∙ 13y agotwo.. its called DIchotomous for a reason.. di implies the fact that it only has 2 choices.. (di means 2)
Wiki User
∙ 12y agoThe sun was hot and so was the sky. ~Dedee
Wiki User
∙ 11y agotwo
Add your answer:
Earn +20 pts
A parallel choice on a dichotomous key is?
Some possible choices of parallels on a dichotomous key are: big or small, shallow or deep rooted, single or multi stemmed, land or sea, etc.
Dichotomous keys are divided into steps with how many descriptions at each step?
There are only two steps in a dichotomous key. In a key, an organism is divided using contrasting characteristics into smaller and smaller groups. Organisms are eliminated as choices are made.
What is a simple definition of a dichotomous key?
it is a key that helps you find an animals characteristics
How can the dichotomous key be improved?
dichotomous key can be improved when by changing the tree structure into a directed acyclic graph
What is a senence for dichotomous key?
In both of which the leaves were dichotomous, we have Annularia, Asterophyllites and Calamocladus.
How many choices does a dichotomous key provide at each step?
By definition (Dichotomy; division into two parts), a dichotomous key has two choices at each step.
A parallel choice on a dichotomous key is?
Some possible choices of parallels on a dichotomous key are: big or small, shallow or deep rooted, single or multi stemmed, land or sea, etc.
Dichotomous keys are divided into steps with how many descriptions at each step?
There are only two steps in a dichotomous key. In a key, an organism is divided using contrasting characteristics into smaller and smaller groups. Organisms are eliminated as choices are made.
What is a dicotomous key?
A dichotomous key is a tool that allows the user to identify the name of items in the natural world, such as trees, wildflowers, mammals, reptiles, rocks, and fish. A Key consists of a series of choices that lead the user to the correct name of a given item. "Dichotomous" means "divided into two parts". Therefore, a dichotomous key always gives two, and only two, choices at each step.
How would you define dichotomous key?
-Well Dichotomous Key in my Biology Book says- A reference tool were a series of choices between alternative characters leads progressively to the identification of the species.HOPE THIS COULD HELP YOU
What is a simple definition of a dichotomous key?
it is a key that helps you find an animals characteristics
Why does a dichotomous key offer two choices at each stage and not more than two?
A dichotomous key is a device that can be used to easily identify an unknown organism. The word dichotomous comes from two Greek words that together mean, "divided in two parts". A dichotomous key consists of a series of two part statements that describe characteristic of organisms. At each step of a dichotomous key the user is presented with two choices. As the user makes a choice about a particular characteristic of an organism they are led to a new branch of the key. Eventually the user will be led to the name of the organism that they are trying to identify.di=2
What is a simple definition of a dichotomous?
A key for the identification of organisms based on a series of choices between alternative characters.
How do you read a dichotomous key?
A dichotomous key is a tool that allows a person to choose between two characteristics at a time. Once the first choice is made, the key directs the person on a path to the next choice. After a chain of choices is made, the key tells what the object is.
How do you read dichotomous key?
A dichotomous key is a tool that allows a person to choose between two characteristics at a time. Once the first choice is made, the key directs the person on a path to the next choice. After a chain of choices is made, the key tells what the object is.
What is a dichotmous key?
a dichotomous key is a key a dichotomous key is a key
A question in a dichotomous key has how many answers?
A question in a dichotomous ket has only two answers. Yes or no
