WARM UP “Average is as close to the bottom as it is to the top.” 1.What does this mean to you? 2.How can you apply this to your education or future life?

Plant Life Cycles

Reproductive Structures Gymnosperm = Cones –Scales Angiosperm = Flowers –Pistil (stigma, style, ovary) –Stamen (filament, anther)

Gymnosperm Life Cycles Angiosperm Ovule –Female cone scale –Egg, nutrients, covering Pollen –Male cone scale pollen sac –Sperm Ovule –In ovary, part of pistil –Egg, nutrients, covering Pollen –Pollen sac in anthers, part of stamen –Sperm

Gymnosperm Life Cycles Angiosperm Pollination –By wind –Pollen sticks to scale –Pollen tube to ovule Pollination –By wind, water, or animals –Pollen sticks to stigma –Pollen tube down style to ovule

Gymnosperm Life Cycles Angiosperm Fertilization –Sperm and egg –Zygote –Embryo in seed Germination Plant produces cones Fertilization –Sperm and egg –Zygote –Embryo in seed Germination Plant produces flowers

Gymnosperm Life Cycle

Angiosperm Life Cycle

Asexual Reproduction Vegetative growth –Runners Horizontal stem with new shoots –Rhizomes Underground runner

Asexual Reproduction Vegetative Propagation –Piece falls off main plant –Adventitious roots (or shoots) grow

WRAP UP List 3 words related to reproduction that are common to all living things. List 3 words related to reproduction that are common to both gymnosperms and angiosperms.