1. Announcements Test Corrections: 12/6 – 12/16
Turn in any missing assignments

2. (Typed Part, Drawings & Observation Log Stapled Together)
Question of the Day
Question: Draw a flower and label the sepals, petals, stamens, and carpel. Answer: … … …
More than 25 types of elements
1’s Turn In:
Biosphere Reports
(Typed Part, Drawings & Observation Log Stapled Together)
p. 707 A.Q. 1ab, 2ab, 3abc

3. Daisies & Sunflowers Are Composite Flowers

4. Trees reproduce sexually, too
Maple
Birch
Redwood
Trees reproduce sexually, too

5. Lab 6.1: Zebrina & Lab 6.2:Planaria

6. Open-Note Quiz: Mitosis & Meiosis
You May Wish To Use:
Vocab Sheet
Mitosis Notes
Meiosis Notes
Lab 17: Comparing Mitosis & Meiosis

11. Lab 13.3: Fruits, Nuts, & Seeds
& Vocabulary Sheet

12. Pollen Dispersal Animals Wind Water pollen is usually barbed or sticky
Mammals, birds, insects (bees, flies, etc.)
Wind
pollen is usually light & aerodynamic
Water
for plants that grow underwater
80% of pollination is from animals

13. Unit 5 Vocabulary fertilization- the joining of sperm and egg
pollen tube- grows towards egg & contains two sperm nuclei
Pollen cells are the fastest growing cells that we know of.

14. Unit 5 Vocabulary
22. seed- plant embryo and food supply enclosed together in a protective seed coat
21. endosperm- energy-rich tissue that nourishes a seedling as it grows
23. fruit- energy-rich tissue that contains one or more seeds

15. Fruit: Matured Ovary
Fruit- matured ovary and other floral parts; used to be a flower
Pea: 1 flower, 1 ovary
Raspberry: 1 flower, many ovaries
1 flower, 1 ovary
1 flower, many ovaries

16. Nut: Matured Ovary
Nut- matured ovary and other floral parts with hard shell; used to be a flower
While there are many obvious difference, the scientific community considers a nut to be the same as a fruit, at least the outer shell of the nut is the fruit. The definition of a fruit is simply stated as the distinctive mature ovary of any flower, plant, or tree, that contains seeds. Since the nut that we eat is technically a seed, the outer layer (shell) is considered to be the fruit.

17. Seed Dispersal Dispersal: movement away from an existing population
Animals
Birds: reliant on color when finding food – red, hot pink, orange.
Mammals: seeds pass through digestive system, may contain laxative
Insects: have excellent senses of smell or color vision or both
Birds lack sensitive noses

18. Seed Dispersal Wind Water Usually light (low density) & aerodynamic
May have wings
Water
For plants that grow in or near large bodies of water (eg. coconut)
Low density: float
Must be somewhat waterproof
Birds lack sensitive noses

19. p. 707 A.Q. 1ab, 2ab, 3abc

20. p. 707 A.Q. 1ab, 2ab, 3abc
1a. Describe how fruits form. 1a. Fruits form as seeds mature and ovary walls thicken. The mature ovary is the fruit.
1b. Is a pumpkin a fruit? Describe any evidence you use in making your inference.
1b. A pumpkin is a fruit. A pumpkin forms the ovary of a flower and it has seeds inside.

21. p. 707 A.Q. 1ab, 2ab, 3abc
2a. Describe two methods of seed dispersal. 2a. Methods of seed dispersal include movement of seeds by animals, wind, and water. 2b. A new angiosperm species is discovered. What questions would you ask before predicting how its seeds are dispersed? Explain the rationale for asking each question. 2b. Your response here! Example: Is the fruit fleshly? If yes, then it will probably be eaten by animals. Are the fruits dry, light weight, or buoyant? If yes, they may be dispersed by wind or water.
Other dispersal methods: by bursting, by humans

22. p. 707 A.Q. 1ab, 2ab, 3abc
3a. Summarize the environmental factors that affect seed germination. 3a. Temperature and moisture affect seed germination. 3b. Why is it adaptive for some seeds to remain dormant before they germinate? 3b. Dormancy enables a seed to survive until environmental conditions become favorable. Dormancy may also allow for long-distance dispersal. 3c. The seeds of a bishop pine germinate only after exposure to the extreme heat of a forest fire. Evaluate the significance of this structural adaptation. 3c. Since most of the trees in the forest will be destroyed by the fire, this adaption decreases competition for resources, thus creating a favorable environment. It also helps ensure that the species will survive fires.