Individual Worksheet
Subject: Biology
Topic: Stages of Development of Land Plants in Major Systematic Groups
Class/Age: Grade 7
Student's Name: ___________________________
Date: ___________________________
Instructions for the Student
Dear student! This worksheet will help you learn about how different groups of land plants developed. Read each task carefully. Write your answers in the spaces provided or in the tables. Use your textbook, notes, and logical thinking. Complete all 5 tasks. Good luck!
1 Key Concepts Matching
Match the plant group on the left with its correct defining characteristic on the right. Write the corresponding letter in the blank.
| Plant Group | Defining Characteristic | Your Answer (Letter) |
|---|---|---|
| 1. Bryophytes (Mosses) | A. Plants with seeds not enclosed in an ovary (e.g., cones). | |
| 2. Pteridophytes (Ferns) | B. The first plants to have true vascular tissue (xylem & phloem). | |
| 3. Gymnosperms | C. Flowering plants with seeds enclosed in a fruit. | |
| 4. Angiosperms | D. Non-vascular plants that require water for reproduction. |
2 Sequence of Evolution
Place the four major plant groups in the correct evolutionary order, from the most ancient (first to colonize land) to the most recent. Write 1 (oldest) to 4 (newest) in the boxes.
Angiosperms
Bryophytes
Gymnosperms
Pteridophytes
Brief explanation: Why did you place Bryophytes first?
3 Life Cycle Comparison
Complete the table below comparing the dominant stage in the life cycle of each plant group. Choose from: Sporophyte (2n) or Gametophyte (n).
| Plant Group | Dominant Stage in Life Cycle | Brief Note on Reproduction |
|---|---|---|
| Bryophytes | ||
| Pteridophytes | ||
| Gymnosperms & Angiosperms |
4 Creative Diagram: From Water to Land
Draw a simple, labeled diagram in the box below showing a key adaptation that allowed plants to move from aquatic environments to land. Choose ONE adaptation (e.g., cuticle, stomata, vascular tissue, seeds). Explain your choice.
Draw your diagram here. Include labels.
My chosen adaptation is: _________________________________
Explanation of its importance:
5 Analysis & Conclusion
Based on what you've learned, analyze the following statement: "The evolution of the seed was the most important event in plant history."
Write a short paragraph (4-5 sentences) arguing for or against this statement. Support your argument with at least two facts about seeds and plant development.