Docstoc

ANIMAL_KINGDOM

Document Sample
ANIMAL_KINGDOM Powered By Docstoc
					ANIMAL KINGDOM
   Pgs. 294-302
       All members of the Kingdom Animalia
        have the following characteristics:
  Type of cells: EUKARYOTIC
  Cellular organization: MULTICELLULAR
  Type of reproduction: ASEXUAL/SEXUAL
  Food production: HETEROTROPHIC BY INGESTION




                                   The angler fish   The Kiwi bird, although only
                                                     the size of a chicken lays an
The Aye-Aye is a nocturnal                           egg that weighs about 1
animal that lives in Madagascar.                     pound!.
Animals are Multi-Cellular
             Let’s Review:

             Cells: basic unit of
             structure and function in
             living things
                 are arranged into…..
             Tissues: similar cells that
             perform a specific function
                 are arranged into……
             Organs: group of several
             different tissues
                  are arranged into…...
             Organ systems: groups of
             organs that perform a broad
             function
 All animals, no matter their size, appearance or
habitat they live in carry out the SAME functions.

• Get food and oxygen



• Keep internal
  conditions stable



• Move



• Reproduce
  Animals EAT!
• Animals have certain
  adaptations that allow
  them to eat a certain
  diet.
  – Ex. fangs. talons, claws,
    pinchers, sharp teeth, etc.
• Being heterotrophic gives
  an animal energy for
  breathing and moving.     Manatees are herbivores and
• Digestion is internal     can fill 90% of their lungs
  – Food is broken down           with oxygen. This allows them
    INSIDE the body.              to stay under water for 20
                                  minutes feeding on plants.
      Animals and Homeostasis
• Animals MUST
  maintain a stable
  environment inside
  their bodies in order
  to survive.
  – Body temperature
  – Levels of oxygen in
    blood
  – Levels of sugar in the
    blood
 Animals Move!
• All animals move AT
  SOME POINT IN
  THEIR LIVES.
• Animals move to meet    Coral is an animal that is
  their basic needs       stationary during its adult life
  – Make and maintain a   but moves during its early
    shelter               stage of life.
  – Find food
  – Get water
  – Find a mate
 Animals Reproduce!
• Sexual reproduction:
  the fertilization of
  an egg by sperm
  – (2 sex cells join)
• Asexual
  reproduction: a new
  organism reproduces
  another organism
  similar to itself
  – (one parent)
      Classification of Animals
• The animal kingdom is
  divided in to phyla.
• All vertebrates are
  divided into one
  phylum, while all the
  other invertebrates
  make up the
  remaining animal
  phyla.
 Animals are classified by their body
structure, DNA, and how it develops.
BASIC BODY CHARACTERISTICS OF
           ANIMALS
Body symmetry - the way body parts are
arranged around a point or central axis.
Directions on the body - used to describe
areas on the body of an animal.
Pattern of body development - a sequence
of developmental steps.
Formation of germ layers - layers of
specialized cells in the early development.
BODY SYMMETRY
      BILATERAL -
     THE BODY CAN BE
     DIVIDED INTO TWO
     IDENTICAL HALVES BY
     ONLY ONE SPECIFIC
     PLANE THROUGH THE
     LONGITUDINAL AXIS.
BODY SYMMETRY
       RADIAL -
       THE BODY CAN BE
       DIVIDED INTO TWO
       IDENTICAL HALVES
       BY ANY PLANE THAT
       PASSES THROUGH
       THE LONGITUDINAL
       AXIS.
BODY SYMMETRY
       ASYMMETRICAL -
       THE BODY HAS NO
       DEFINITE SHAPE
       AND CANNOT BE
       DIVIDED INTO TWO
       IDENTICAL HALVES.


               Sea sponge is
               asymmetrical
     DIRECTIONS ON AN
        ANIMAL BODY

             DORSAL -
             TOP SURFACE
ANTERIOR -
FRONT END                  POSTERIOR -
                           HIND END



               VENTRAL -
               BOTTOM SURFACE
    Developmental Stages
1.ZYGOTE-THE FERTILIZED EGG.
2. EMBRYO-THE DEVELOPING FERTILIZED
   EGG.
3. FETUS-THE EMBRYO HAS DEVELOPED
   TO THE POINT THAT IT BEGINS TO
   RESEMBLE THE MATURE ORGANISM.
Vertebrate embryos look alike in
    their early development




 1.
          GERM LAYERS
• WHAT IS A GERM
LAYER?
 •Specialization of body
 tissues in common
 animals.
 •2 or 3 germ layers may
 develop while the animal
 is forming
 •These cell layers become
 specific structures and
 organs in the animal.
a.ECTODERM-CELLS ON THE OUTSIDE THAT
  BECOME THE BODY COVERING.
b.MESODERM-A MIDDLE LAYER OF CELLS THAT
  FORMS MUSCLES AND INTERIOR ORGANS.
c.ENDODERM- INSIDE CELLS THAT FORM THE
  GUT

				
DOCUMENT INFO
Shared By:
Categories:
Tags:
Stats:
views:4
posted:11/28/2011
language:English
pages:20