College

Graded Assignment: Lab Report

Task: Create a dichotomous key that identifies the 10 leaves on the Common Leaves sheet.

Instructions:
1. Examine the leaf samples closely and develop a dichotomous key to help identify them.
2. Ensure your dichotomous key contains only pairs of statements about a single characteristic. For example:
- A. Leaf margin smooth
- B. Leaf margin toothed
3. Avoid pairs of statements that do not address the same characteristic. For example, avoid:
- A. Leaf margin smooth
- B. Leaf type needle-like
4. Test your key with the 10 leaves provided on the Common Leaves sheet.
5. Once your key identifies all 10 leaves, type your statements, "go tos," and identifications, following the format in the example provided below.

Example Format (based on a dichotomous key for birds):
- Statement 2a: The bird has a crest of feathers on the top of its head. [Go to statement or identify bird: Blue Jay]
- Statement 2b: The bird has a smooth head. [Go to statement or identify bird: 3]

Assignment Submission:
- Complete your dichotomous key and answer the two remaining questions.
- Submit this assignment to your teacher by the due date for full credit.

Scoring:
- Total score: [Enter total score here] of 26 points
- Score for Question 1: [Enter score here] of 20 points

Question 1: Complete a dichotomous key for the 10 leaves on the Common Leaves sheet.
- The chart provided allows for 11 pairs of statements. You may need more or fewer pairs, depending on how you build your key.

Statement Types/Dichotomous Key for Leaves:
- Statement 1a: [Enter statement here] [Go to statement or identify leaf: Enter here]
- Statement 1b: [Enter statement here]