Problem Overview:
The task involves using a
dichotomous key to identify the five leaves (A, B, C, D, E) shown in the image. A dichotomous key is a tool used for identification that presents a series of choices between two statements. By following the steps and making decisions based on the characteristics of the leaves, we can determine their identities.
Step-by-Step Solution:
####
Leaf A:
1.
Step 1: Is the leaf oval shaped?
- Yes, Leaf A is oval shaped.
- Go to
Step 2.
2.
Step 2: Is the leaf shorter and wide?
- Yes, Leaf A is shorter and wide.
- Go to
Step 4.
3.
Step 4: Does the leaf have 4 veins on each side?
- No, Leaf A does not have 4 veins on each side.
- Go to
4B: Leaf has 5 veins on each side.
-
Conclusion: Leaf A is a
Beech.
####
Leaf B:
1.
Step 1: Is the leaf oval shaped?
- Yes, Leaf B is oval shaped.
- Go to
Step 2.
2.
Step 2: Is the leaf shorter and wide?
- Yes, Leaf B is shorter and wide.
- Go to
Step 4.
3.
Step 4: Does the leaf have 4 veins on each side?
- Yes, Leaf B has 4 veins on each side.
-
Conclusion: Leaf B is a
Birch.
####
Leaf C:
1.
Step 1: Is the leaf oval shaped?
- No, Leaf C is star-shaped.
- Go to
Step 3.
2.
Step 3: Does the leaf have smooth edges?
- No, Leaf C has jagged edges.
-
Conclusion: Leaf C is a
Sugar Maple.
####
Leaf D:
1.
Step 1: Is the leaf oval shaped?
- Yes, Leaf D is oval shaped.
- Go to
Step 2.
2.
Step 2: Is the leaf longer and narrow?
- Yes, Leaf D is longer and narrow.
-
Conclusion: Leaf D is a
Hickory.
####
Leaf E:
1.
Step 1: Is the leaf oval shaped?
- No, Leaf E is star-shaped.
- Go to
Step 3.
2.
Step 3: Does the leaf have smooth edges?
- Yes, Leaf E has smooth edges.
-
Conclusion: Leaf E is a
Sweetgum.
Final Identification:
-
A: Beech
-
B: Birch
-
C: Sugar Maple
-
D: Hickory
-
E: Sweetgum
Boxed Answer:
\[
\boxed{
\text{A: Beech, B: Birch, C: Sugar Maple, D: Hickory, E: Sweetgum}
}
\]
Parent Tip: Review the logic above to help your child master the concept of taxonomic keys worksheet.
