Examples of a dichotomous key

Answer 1

A Dichotomous Key is a device that can easily identify an unknown organism. "Dichotomous" means "divided in two parts".

Here's a link: http://lucidcentral.cbit.uq.edu.au/keys/images/dichotomous.gif

Answer 2

isn't a real key. It's a book with a series of two question that guide you to the scientific name of any living thing. Dichotomous means "two parts." One question of each question pair leads you to the next pair of questions. Example: Tree has needles - will lead to conifers Tree has leaves - will lead to leafed trees Here's a helpful link: http:/nerds.unl.edu/pages/preser/sec/skills/dkeys.html

Answer 3

Evergreen Trees in Utah

1. a. Leaves scaly-like; cones are small, blue and berry- like ................go to 2

b. Leaves needle-like; cones large and brown ..................................go to 3

2. a. Leaves rough; berry-like cones are about 1 in. in diameter; trunk is forked ...................................................................................Utah Juniper

b. Leaves smooth; berry-like cones less than 1 in.; trunk has central

stem ............................................................................Rocky Mtn. Juniper

3. a. Needles are in bundles of 2 or more; cone scales are woody .......go to 4

b. Needles are not in bundles, they are single; cone scales are

papery ...........................................................................................go to 5

Etc.

Answer 4

The dichotomous key is basically a chart that contains pairs of questions about the plant or animal in question. Each answer narrows down the possibilities until you get the name of what you have.