1. Form a Hypothesis Which are more likely to be dispersed by animals- the seeds of an angiosperm or a gymnosperm- explain
Explain How do the three methods of categorization differ from scientific methods
Form an Opinion Is it useful or misleading to categorize angiosperms in ways that do not reflect evolutionary relationships- defend your opinion

2. Ch 22 Introduction to Plants
22.4 Flowering Plants

3. Flowering plants are by far the most abundant organisms in the plant kingdom
They evolved much more recently than did other seed plants.

4. Flowers and Fruits Angiosperms reproduce sexually by means of flowers
After fertilization, ovaries within flowers develop into fruits that:
Surround
Protect
Help disperse the seeds.

5. Ovaries
Surround and protect seeds inside of flower.

6. Advantages of Flowers
Attract animals that carry pollen with them to the next flower they visit
More efficient pollination than gymnosperms.

7. Advantages of Fruits Fruit
Structure containing one or more matured ovaries
Seeds from the fruit enter the animal’s digestive system after it eats a fruit
Seeds travel a far distance before leaving the digestive system.

8. Angiosperm Classification
Cotyledons
Number of seed leaves
Monocot
One seed leaf
Dicot
Two seed leaves.

9. Pg 543.

10. Angiosperm Diversity Grouped according to: Number of their seed leaves
Strength and composition of their stems
Number of growing seasons they live.

11. Monocot Vs Dicot
Differences include the distribution of vascular tissue in stems, roots, and leaves, and the number of petals per flower.

12. Woody plants Herbaceous plants
Made primarily of cells with thick cell walls that support the plant body
Herbaceous plants
Have stems that are smooth and nonwoody.