test corrections: 12/6 – 12/16 turn in any missing assignments announcementsannouncements
TRANSCRIPT
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• Test Corrections: 12/6 – 12/16• Turn in any missing assignments
AnnouncementsAnnouncementsAnnouncementsAnnouncements
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Question: Draw a flower and label the sepals, petals, stamens, and carpel.
Answer: … … …
1’s Turn In: -Biosphere Reports (Typed Part, Drawings & Observation Log Stapled Together)-p. 707 A.Q. 1ab, 2ab, 3abc
Question of the DayQuestion of the DayQuestion of the DayQuestion of the Day
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Daisies & Daisies & Sunflowers Sunflowers
Are Are Composite Composite
FlowersFlowers
Daisies & Daisies & Sunflowers Sunflowers
Are Are Composite Composite
FlowersFlowers
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Maple Birch
Redwood
Trees reproduce Trees reproduce sexually, toosexually, too
Trees reproduce Trees reproduce sexually, toosexually, too
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Lab 6.1: Zebrina &Lab 6.1: Zebrina &Lab 6.2:PlanariaLab 6.2:Planaria
Lab 6.1: Zebrina &Lab 6.1: Zebrina &Lab 6.2:PlanariaLab 6.2:Planaria
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Open-Note Quiz: Mitosis & MeiosisOpen-Note Quiz: Mitosis & Meiosis
You May Wish To Use:You May Wish To Use:•Vocab SheetVocab Sheet•Mitosis NotesMitosis Notes•Meiosis NotesMeiosis Notes
•Lab 17: Comparing Mitosis & MeiosisLab 17: Comparing Mitosis & Meiosis
Open-Note Quiz: Mitosis & MeiosisOpen-Note Quiz: Mitosis & Meiosis
You May Wish To Use:You May Wish To Use:•Vocab SheetVocab Sheet•Mitosis NotesMitosis Notes•Meiosis NotesMeiosis Notes
•Lab 17: Comparing Mitosis & MeiosisLab 17: Comparing Mitosis & Meiosis
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Lab 13.3: Fruits, Nuts, & SeedsLab 13.3: Fruits, Nuts, & Seeds& Vocabulary Sheet& Vocabulary Sheet
Lab 13.3: Fruits, Nuts, & SeedsLab 13.3: Fruits, Nuts, & Seeds& Vocabulary Sheet& Vocabulary Sheet
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Pollen DispersalPollen DispersalPollen DispersalPollen Dispersal• Animals
– pollen is usually barbed or sticky
– Mammals, birds, insects (bees, flies, etc.)• Wind
– pollen is usually light & aerodynamic
• Water – for plants that grow underwater
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Unit 5 VocabularyUnit 5 VocabularyUnit 5 VocabularyUnit 5 Vocabulary
24. fertilization- the joining of sperm and egg
25. pollen tube- grows towards egg & contains two sperm nuclei
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Unit 5 VocabularyUnit 5 VocabularyUnit 5 VocabularyUnit 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
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1 flower, many ovaries
Fruit: Matured OvaryFruit: Matured OvaryFruit: Matured OvaryFruit: Matured Ovary• Fruit- matured ovary and other floral parts; used to be a flower
1 flower, 1 ovary
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Nut: Matured OvaryNut: Matured OvaryNut: Matured OvaryNut: Matured Ovary
• Nut- matured ovary and other floral parts with hard shell; used to be a flower
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Seed DispersalSeed DispersalSeed DispersalSeed 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
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Seed DispersalSeed DispersalSeed DispersalSeed Dispersal• Wind
– 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
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p. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abc
p. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abc
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p. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abc1a. 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.
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p. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abcp. 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.
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p. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abcp. 707 A.Q. 1ab, 2ab, 3abc3a. 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.