1. Plants Table of Contents What Is a Plant? Classifying Plants
Plant Structures
Plant Reproduction
Plant Responses and Growth
Plants in Everyday Life

2. What Is a Plant? Plant Cells
How does having cell walls affect a plant's ability to grow?

3. What Is a Plant? Getting Water in the Desert
Saguaro roots spread horizontally and quickly absorb water from a wide area. The Acacia tree
gets its water from deep in
the ground. How
are its roots
different?

4. What Is a Plant?
This graph shows how much water a plant loses during the day. What would be a good title for the graph?

5. Classifying Plants Moss Structure
Moss grows a long, slender stalk with a capsule at the end that contains spores for reproduction. Rootlike rhizoids anchor the moss and absorb water and nutrients.

6. Classifying Plants
Nonvascular Plants
Complete the table.

7. Classifying Plants Fern Structure
Like other plants, ferns have roots, stems, and leaves.

8. Classifying Plants
Monocots and Dicots

9. Classifying Plants
Major Groups of Known Plants

10. Plant Structures
Root Structure
Roots have many structures.

11. Plant Structures Stem Structure
The woody stem of a tree contains many different structures. What are the active xylem and phloem on the tree trunk?

12. Plant Structures Leaf Structure
Each structure helps a leaf produce food.

13. Plant Structures
Stomata
Stomata can slow water loss.

14. Plant Structures Story of a Seed
Which is the seed’s embryo, cotyledons, and seed coat on the diagram?
Stem and
root
Stored
Food

15. Plant Structures
Structures of a Typical Flower

16. Plant Reproduction Plant Life Cycle All plants go through two
stages in their life cycle. Which are the sporophyte and gametophyte stages?

17. Plant Reproduction Gymnosperm Reproduction Cycle
Explain the steps of pollination and fertilization in the cycle.

18. Plant Reproduction Angiosperm Reproduction
Reproduction in angiosperms begins with flowers.

19. Plant Reproduction Flower to Fruit
What is the correct order of progression of flower to fruit?

20. Plant Responses and Growth
Plant Responses to Stimuli
The stimuli in space are not always the same as those on Earth.

21. Plant Responses and Growth
Light
All plants exhibit a response to light called phototropism.

22. Plant Responses and Growth
Photoperiodism
Flowering plants can be grouped as short-day plants, long-day plants, and day-neutral plants.

23. Plant Responses and Growth
The graph shows how many seeds germinated over time at each temperature.

24. Plant Responses and Growth
Roving for Life in Space
The rover has found three living things and one of them is a plant. Which sample is that plant?

25. Plants in Everyday Life
The Role of Plants in an Ecosystem
What are two other roles that an oak tree serves for living or nonliving things?