PPT-Pollen producing plants

Gymnosperms Have long thin needle like leaves to conserve water Largest group are the conifers Christmas trees Are evergreens retain their leaves all year long . General . Characteristics and . structures . – These organisms are . all multicellular eukaryotes that are autotrophs . and acquire their nutrients by . photosynthesis. . . They have plastids which contain chlorophyll A, Chlorophyll B, and carotenoids and the cells have walls consisting of Cellulose. . Bellringer 10/14/14. Agenda. :. I can match flower parts with their reproductive functions.. I will label and explain the function of the reproductive parts of a flower. . Copy and answer in comp book. An Introduction to Angiosperms: The Flowering Seed Plants. Seed Plants . Vascular. Angiosperms- Flowering Plants. Phylum . Angiosperma. The majority of plants alive today and the most diverse group. Characteristics. Arthur and Kelvin. -> Flowering involves a change in gene expression in the shoot apex.. -> The switch to flowering is a response to the length of light and dark periods in many plants.. -> Most flowering plants use mutualistic relationship with pollinators in sexual reproduction. Pollination. Pollination. is the transfer of pollen from the male anther to the female stigma.. Importance of Pollination. Sexual reproduction is important for evolution as it produces variable offspring, creating diversity and variation among populations (shuffling of genes).. In many plants, sexual reproduction occurs in the flower.. Unlike humans, the male and female sex cells in many plants are found in the same individual.. Organisms, like many flowers, that have both sets of sex organs are . Hvorfor ligner avkom sine foreldre?. Biologisk arv, hva arves?. Historisk tilbakeblikk.. . Forskningen som førte fram til kunnskapen om DNAs oppbygning og virkemåte.. . HONEYBEE ON OREGANO. HONEYBEE WITH FULL POLLEN SACK. PARTS OF A FLOWER. SOME PLANTS THAT ARE . COMMON. IN THE INLAND . NORTHWEST. . Alfalfa. Sweet Clover. Black Locust. Vetch. Star Thistle. Knapweed. Bee Keeping Course: Session III – Managing the Colony. NECTAR. Nectar is a sweet liquid (mostly sugar and water) made in special glands called . nectaries. that are found on flowering plants.. Necatries. The reason that two sperm cells travel down the angiosperm pollen tube is that . they both stimulate growth of the pollen tube.. one fertilizes the egg, and the other combines . with the two polar nuclei.. Angiosperms. History. Oldest known fossils date back to about 132 million years ago. Molecular data show they evolved around 125 – 180 million years ago. Co-evolved with flying insects as . polinators. Spring . 2014. Outline. Review of land plant phylogeny. Characters of seed plants. Gymnosperm phylogeny & diversity. Cycads. Gingko. Conifers. Gnetophytes. Review of land plant phylogeny. Green plants (viridophytes). Spring 2013. Outline. Review of land plant phylogeny. Characters of seed plants. Gymnosperm phylogeny & diversity. Cycads. Gingko. Conifers. Gnetophytes. Review of land plant phylogeny. Green plants (viridophytes). (Ch. 38). Charophyceans. Bryophytes (nonvascular plants). Seedless vascular plants. Gymnosperms. Angiosperms.  . Rafflesia arnoldii. , “monster flower” . of Indonesia. Orchid. (. Lemboglossum. rossii.