KCC Biology Department BioLab 1 Exercise 2

BioLab 1 Exercise 2
Dichotomous Key

Objectives:

To expand one's knowledge of Taxonomy.

To improve understanding and use of Dichotomous Keys.

To utilize a dichotomous key and the Internet to classify and identify several organisms to the level of Genus and species.

To become familiarized with Internet ethics.

Materials:

A computer.
Internet access through an Internet service provider (ISP), and a browser such as Netscape Navigator.®

Methods:

Read the Background material on Dichotomous Keys.
From the list below, use the mouse to select and click on one of the Dichotomous Keys to identify the scientific name (Genus species) of an organism.

Trees of the Pacific Northwest - provides a screen of information, and then gives you the opportunity to work through the key.
Pteridophyte (Fern) Families of Australia - takes a moment to load; provides some background information, and then takes you through the key by asking you to answer a series of questions.
What Tree Is It? - allows you to identify trees by leaf or fruit or name; provides comprehensive answer.
Dichotomous Key for Virus Identification - a short key; not comprehensive, but good information.

Repeat for several organisms using the same key and another from the list.
You may also visit any of the following Virtual Libraries whose resources may help you.

Did you find the scientific name (Genus species)?
Does the webpage appear to be accurate? Can the author be contacted? Is there an email address?
Is the author an authority on the subject? Is there an institution associated with, or that appears to stand behind, the webpage? Does the author list any credentials?
Is the work objective? Are there any advertisements on the webpage? Is fact distinguished from opinion?
Is the material current? Are the links current? Are "dead" links listed on the page? Any indication of when the page was last updated?

Computer and Internet Ethics

Do not provide personal information online, nor strike up conversations with strangers in online chat rooms.
Do not violate copyright laws through illegal duplication of software, or through utilization of the original online work of others without proper citation, or permission,
Keep any and all passwords confidential.
When on the KCC or other Website networks, do not attempt accessing restricted areas which require codes or passwords. In addition to not being the right thing to do, you could be arrested.
When using your home computer, always scan newly downloaded software for viruses utilizing the antiviral programs that are part of your computer's utilities.