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Plants Of The Earth

Published on Nov 22, 2015

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PRESENTATION OUTLINE

WHAT IS A PLANT, A PLANT IS A AUTOTROPHS, EUKARYOTES, REPRODUCEABLE

DRAKE HARPER

IN ORDER FOR A PLANT TO ADAPT

  • they must have ways to obtain water and other nutrients from their
  • Surroundings
  • retain water, transport materials in their bodies
  • support their bodies, and reproduc

NONVASCULAR PLANTS

  • Moss, liverwort, and, hornworts

MOSSES

  • Most diverse group of Nonvascular plants
  • Rhizoids anchor the moss and absorb water & nutrients
  • Moss has capsules at the end

LIVERWORT

  • 8000 species of liverworts
  • Often grow on moist rocks or soil
  • Have sporophytes

HORNWORTS

  • Fewer then 100 species of hornworts
  • Live in moist soil
  • Mixed with grass plants

SEEDLESS VASCULAR PLANTS

  • Can grow tall
  • Need to be in moist surroundings
  • Need to have enough water for fertilization

FERNS

  • 12000 species of ferns
  • The fronds a divided it many littler parts
  • True stem, roots, and leaves,

HORSETAILS

  • Very few species
  • Stems contain silica.
  • Also called scouring rushes
Photo by blucolt

CLUB MOSSES

  • True stems, roots, leaves
  • Only a few hundred species
  • Has vascular tissue
  • Usually grows in moist woodlands and streams

SEED PLANTS

  • Has vascular tissue, and they use pollen
  • Complex life cycles
  • The gametophytes are microscopic

PHLOEM AND XYLEM

  • Phloem- vascular tissue in which food moves
  • Xylem- water and minerals travel through

POLLEN AMD SEEDS

  • Live in wide variety of environments
  • Do not need water for sperm to swim
  • Seed is a structure that contains a small plant inside

SEED STRUCTURE

  • Embryo, stored food, seed coat
  • The young plant that developers from zygote
  • Cotyledons

SEED DISPERSAL

  • Scattering of seeds are called dispersal
  • One way of it is for a animal or human to eat and poop the seed
  • Can also be in water
Photo by wickenden

GERMINATION

  • Embryo begins to grow and pushes thought the seed
  • Embryo uses the stored food to grow
Photo by peretzp

ROOTS

  • Anchor plants in ground
  • Absorb water and minerals
  • Store food sometimes
Photo by Idhren

STEMS

  • Carries substances
  • Provides supports

LEAVES

  • Vary in size and shape
  • Carrie am important role
  • Capture suns energy
  • Photosynthesis
Photo by Dawn Huczek

GYMNOSPERMS

  • Seed that produces naked seeds
  • Not enclosed by a protective fruit
Photo by born1945

EXAMPLES OF GYMNOSPERMS

  • Cycads
  • Conifers
  • Ginkgoes
  • Gnetophytes
Photo by Steve-SF

ANGIOSPERMS

  • Flowering plants
  • Produce flowers
  • Produce covered seeds
Photo by Scott Loarie

EXAMPLES OF ANGIOSPERMS

  • Sepals and petals
  • Stamens
  • Pistils
  • Pollinators
Photo by kevin dooley

MONOCOT VS DECOT

  • Monocots have three petals
  • Dicots have 4 or 5 petals
Photo by the_girl

PLANT TROPISMS

  • Touch light gravity
  • Touch plants are sensitive
  • Light plants always a temp to go to,light
  • Gravity plants grow downward
Photo by { pranav }