Introduction to zoology
1 / 19

Introduction to Zoology - PowerPoint PPT Presentation

  • Uploaded on

Introduction to Zoology. Classification of Animals. Review. Biology is the study of life… So what makes something living?. All living things must:. Be made up of at least 1 cell that contains genetic material (DNA) Reproduce (sexually or asexually)

I am the owner, or an agent authorized to act on behalf of the owner, of the copyrighted work described.
Download Presentation

PowerPoint Slideshow about ' Introduction to Zoology' - umeko

An Image/Link below is provided (as is) to download presentation

Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author.While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server.

- - - - - - - - - - - - - - - - - - - - - - - - - - E N D - - - - - - - - - - - - - - - - - - - - - - - - - -
Presentation Transcript
Introduction to zoology

Introduction to Zoology

Classification of Animals


  • Biology is the study of life…

    • So what makes something living?

All living things must
All living things must:

  • Be made up of at least 1 cell that contains genetic material (DNA)

  • Reproduce (sexually or asexually)

  • Grow (increase in size, mature, develop, etc.)

  • Metabolize (have a need and use for energy)

  • Respond to stimuli

That s all fine and good but when do we get to the animals
That’s all fine and good, but when do we get to the animals?

  • Zoology-the study of animals

    • Two Major Categories:

      • Vertebrates-have a backbone

      • Invertebrates-do not have a backbone

      • Vertebrate or Invertebrate?

Characteristics of animals
Characteristics of Animals animals?

  • All multicellular (metazoans)

  • Eukaryotes (cells with nucleus & organelles)

  • Cells do not have a cell wall or chloroplast

  • Ingestive heterotrophs (take in food and internally digest it)

  • Store food reserves as glycogen

Besides having the characteristics of living things animals also
Besides having the characteristics of living things, animals also:

  • Carry out the following life processes:

    1.) Locomotion:

    • Motile-can move from one location to another on their own

    • Sessile-cannot move from place to place, but do have moving parts



Life processes continued

Ingestion also:

Life Processes continued

  • Ingestion-take in food

  • Digestion-chemical breakdown of food

  • Assimilation- using the substances obtained from food and utilizing it for growth

  • Excretion-waste removal

  • Respiration-taking in O2 and breaking down glucose to release energy

Classification also:

  • So now that we’ve got all these animals, how do we make sense of it all?


    • Taxonomy-Science of classifying organisms and assigning each organism a universally accepted name.

Linnaean classification system
Linnaean Classification System also:

  • Created by Carl Linnaeus (1707-1778)

    • Before Linnaeus, organisms were classified based on their type of locomotion and physical characteristics

      • Problem? Names were too long, and people describe things differently.

  • Utilizes binomial nomenclature- a two

    name system (genus and species)

    • Names are in Latin

  • Ex: Homo sapiens

Scientific name
Scientific Name also:

  • First name is genus; second name is species

  • 3 Rules For Scientific Name

    • Italicized or underlined

    • Genus name is Capitalized

    • Species name is lower-case

  • Example: Tursiopstruncatus

The modern classification system
The Modern Classification System also:

  • 7 Taxa:

    • Kingdom

    • Phylum

    • Class

    • Order

    • Family

    • Genus

    • Species

Kingdom animalia
Kingdom Animalia also:

  • Has 7 Major Phyla

    • Porifera

    • Cnidaria

    • Annelida

    • Mollusca

    • Arthropoda

    • Echinodermata

    • Chordata

Phylum porifera
Phylum Porifera also:

  • Porifera- “pore bearer”

  • Sponges

  • Simplest of all animals

  • Filter feeders

  • No true tissues or organs

Phylum cnidaria
Phylum Cnidaria also:

  • Includes hydras, sea anemones, jelly fish, and coral

  • Have stinging cells for defense and prey capture

  • Simple body plan (gastrovascular body cavity with one opening)

Phylum annelida
Phylum Annelida also:

  • Annelid- “little ring”

  • Includes marine worms, earthworms, leeches

  • Bodies are segmented

Phylum mollusca
Phylum Mollusca also:

  • Includes snails, octopusses, squids, clams, mussels, conchs, etc.

  • Have a shell (either external or internal)

  • Have a mantle lining the shell

Phylum arthropoda
Phylum Arthropoda also:

  • Arthropoda- “jointed foot”

  • Most diverse group

  • Includes crabs, lobsters, insects, spiders

  • Have an exoskeleton (outer hard covering is their skeleton)

Phylum echinodermata
Phylum Echinodermata also:

  • Includes sea stars, sea urchins, sand dollars, and brittle stars.

  • Radially symmetrical

  • Posess a water vascular system- fluid filled channels that function in gas exchange, locomotion and feeding.

Phylum chordata
Phylum Chordata also:


  • Characterized by the presence of a vertebral column

  • Includes 5 classes

    • Fish

    • Amphibians

    • Reptiles

    • Birds

    • Mammals