L18: 18.1-18.2L18: 18.1-18.2The Next Generation – part 1The Next Generation – part 1

Getting Started:Getting Started:List 4 ways in which seeds List 4 ways in which seeds

may be dispersed by plants.may be dispersed by plants.

PROCEDURE:PROCEDURE:Pages 206-208Pages 206-208

DATA:DATA: Directions Directions Enter the appropriate data from Enter the appropriate data from

Inquiry 18.1 in the following table.Inquiry 18.1 in the following table.

Seed Pods #Seed Pods # Seed #Seed # Average Average (seeds/pod)(seeds/pod)

DATA ANALYSIS:DATA ANALYSIS: A.A. What initiated the formation of the What initiated the formation of the

seed pods?seed pods? B.B. What do you think determines the What do you think determines the

number of seeds found in each pod?number of seeds found in each pod? C.C. Was it more than mere luck that the Was it more than mere luck that the

seeds came out of the pods so easily? seeds came out of the pods so easily? Explain.Explain.

D.D. In Lesson 9, you counted the number of Fast In Lesson 9, you counted the number of Fast Plants that displayed a purple pigment in their stem Plants that displayed a purple pigment in their stem and leaves. You recorded this number in your and leaves. You recorded this number in your science notebook. You pollinated these plants and science notebook. You pollinated these plants and harvested their seeds. You chose 36 of these seeds harvested their seeds. You chose 36 of these seeds and set them up for germination in your group’s and set them up for germination in your group’s petri dish. If all of the seed germinated, how many petri dish. If all of the seed germinated, how many of the sprouts do you predict will display the purple of the sprouts do you predict will display the purple pigment? ______ Explain.pigment? ______ Explain.

E.E. Why do you think some species of plants Why do you think some species of plants produce only one seed in a fruit, while others produce only one seed in a fruit, while others produce thousands of seeds? produce thousands of seeds?

F.F. Of what importance to the plant is the Of what importance to the plant is the dispersal of seeds?dispersal of seeds?

Reading: Reading: “Seedless Plants” – pages 209-210“Seedless Plants” – pages 209-210

1.1. Describe what a plant graft is.Describe what a plant graft is.2.2. How might a plant graft be useful How might a plant graft be useful

to humans?to humans?3.3. In the space to the right, draw a In the space to the right, draw a

picture of a grafted plant and picture of a grafted plant and label the rootstock and the scion.label the rootstock and the scion.

VOCABULARY:VOCABULARY: Dominant Dominant RecessiveRecessive GenesGenes MeiosisMeiosis EggEgg SpermSperm HomozygousHomozygous HeterozygousHeterozygous GenotypeGenotype PhenotypePhenotype

CONCLUSION:CONCLUSION:Be sure to look back @ the Be sure to look back @ the

original question.original question.Use complete sentences.Use complete sentences.USE & HIGHLIGHT all USE & HIGHLIGHT all

vocabulary words.vocabulary words.