Taxonomy

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Cards (116)

  • Classification
    The process of grouping things according to similar characteristics
  • Places/things organized to help people find what they need
    • Libraries
    • Digital files
    • Grocery stores
  • Biologists use classification
    To organize living things into groups so that they are easier to study
  • Taxonomy
    The study of classification
  • If you know a shark is classified as a fish, you know it lives in water and has gills
  • Carolus Linnaeus (Karl Von Linné)
    A Swedish naturalist who in the 1750s devised a system of naming organisms that is still used today
  • Binomial nomenclature
    The system where each organism gets a two-part name
  • Scientific names
    Have two parts: Genus + Species
  • Rules for scientific names
    • Must be written in Latin
    1. Genus name begins with a capital letter, species name is all lowercase
  • Scientific names
    • Homo sapiens
    Felis domesticus
    Limulus polyphemus
    Megaptera novaeangliae
  • Classification groups of plants
    • Nonvascular
    • Vascular
    • Seedless
    • Seeds
    • Ferns
    • Gymnosperms
    • Angiosperms
  • Advantages of scientific names
    • They are universal, so scientists worldwide can identify an organism by the same name
    1. They eliminate confusion over common names
  • We will be focusing on plants that reproduce using flowers
  • Taxa
    Groups or sub-groups that organisms are classified into
  • Angiosperms
    The organs of sexual reproduction in plants that are called flowers
  • Order of 8 taxa from largest to smallest
    • Domain
    Kingdom
    Phylum
    Class
    Order
    Family
    Genus
    Species
  • Stamen
    • The male part of a flower
    • Has a thread-like filament and a knob-like anther
    • The anther makes pollen grains which are the sperm cells of a plant
  • As the number of organisms decreases, the similarities between them increase
  • Pistil
    • The female part of a flower
    • Located in the center of the flower, inside the circle of stamens
    • The lower part of the pistil is the ovary, which contains one or more ovules with egg cells
    • Fertilization of an egg by a pollen grain takes place in the ovule
  • Pollination
    Transfer of pollen from stamen to pistil
  • Chordates have a backbone
  • Life Science 7

    __________
  • Kingdom ANIMALIA
    • Animal Classification- two major groups:
  • Homo sapiens and Ursus americanus are related up to the order Carnivora
  • Self-pollination
    Pollen from a flower's own stamen fertilizes the pistil of that same flower
  • Cross-pollination
    Pollen from one flower fertilizes the pistil of a different flower
  • Two major groups of animals
    • Vertebrates
    • Invertebrates
  • Vertebrates
    Animals that have backbones
  • Invertebrates
    Animals without backbones
  • 8 categories to narrow down the location of a person
    • Planet
    Domain
    Continent
    Kingdom
    Country
    State
    City/Town/Village
    Address
  • Seed plant reproduction
    1. Pollination
    2. Fertilization
    3. Ovule becomes a seed
  • Prokaryotes
    Simple cells without a nucleus
  • Angiosperms
    Produce seeds that are surrounded by fruit
  • Invertebrate Phyla (7)
    • PORIFERA
    • CNIDARIA
    • PLATYHELMINTHES (flatworms)
    • ANNELIDA
    • MOLLUSCA
    • ECHINODERMATA
    • ARTHROPODA
  • Eukaryotes
    Complex cells with a nucleus
  • Animals that eat fruit help disperse the seeds
  • PORIFERA
    Invertebrates with pores
  • Imperfect flower
    A flower that has only pistils or stamens
  • Autotrophs
    Producers that can manufacture their own food
  • PORIFERA
    • sponges