Arthrppods
This presentation is the property of its rightful owner.
Sponsored Links
1 / 17

ARTHRPPODS PowerPoint PPT Presentation


  • 58 Views
  • Uploaded on
  • Presentation posted in: General

ARTHRPPODS. Chapter 24. What is Entomology?. The study of insects (and their near relatives). Review of Zoological Nomenclature. Taxonomic Categories. Kingdom - Animalae Phylum - Arthropoda Class - Insecta Order - Coleoptera Family - Scarabaeidae Genus - Popillia Genus & species

Download Presentation

ARTHRPPODS

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


Arthrppods

ARTHRPPODS

Chapter 24

What is Entomology?

The study of insects

(and their near relatives).


Arthrppods

Review of Zoological Nomenclature

Taxonomic Categories

Kingdom -Animalae

Phylum - Arthropoda

Class -Insecta

Order -Coleoptera

Family -Scarabaeidae

Genus -Popillia

Genus & species

Popillia japonica Newman


Arthrppods

Characteristics of the Phylum

Arthropoda

24.1

  • Segmented bodies (e.g., head, thorax, abdomen).

  • Paired appendages (e.g., legs, antennae) are jointed.

  • Chitinousexoskeletion that must be shed.

  • Bilateral symmetry.

  • The nervous system is dorsal (belly) and the circulatory system is open and ventral (back).


Arthropod e xoskeletons

Arthropod Exoskeletons

  • Joints are made of stiff and flexible cuticle to allow movement.

  • The exoskeleton is made of many layers of chitin.

    • hard material that protects the body

    • must be shed in order to grow


Arthrppods

  • Crustaceans—live in oceans,

    freshwater streams, and on land

Arthropod Classification

  • Chelicerates—specialized dagger-like

    mouthparts

  • Insects—most live on land, have six legs

  • Myriapods—long bodies and many pairs of legs


Crustaceans marine arthropods

Crustaceans(Marine Arthropods)

24.2

  • two distinct body sections, cephalothorax and abdomen

  • one pair of appendages per segment

  • two pairs of antennae

  • exoskeleton

  • carapace


Crustacean a ppendages

Crustacean Appendages

  • Crustacean appendages are used for a variety of functions.

    • collecting and manipulating food

    • attracting females

    • Protection

    • claws, antennae, walking legs, swimmerets, and mandibles.


T ypes of crustaceans

Types of Crustaceans.

  • Decapods such as lobsters and crabs have ten legs.

  • Isopods such as pill bugs

  • have flattened bodies

  • and seven pairs of legs.

  • Barnacles are sessile filter

  • feeders wrapped in a hard shell.


Arthrppods

fangs

poison gland

spinnerets

Chelicerate Arthropod Characters:

  • Pincher-like mouthparts - chelicerae

  • NO antennae

  • Two body regions, usually - cephalothorax & abdomen

  • Four pairs of legs

  • Horseshoe crabs and arachnids are only living groups

24.3


Arachnids are the largest group of chelicerates

Arachnids are the largest group of chelicerates.

  • There are three major groups of chelicerates.

    • horseshoe crabs

    • sea spiders

    • arachnids


Arachnids spiders

Arachnids -- Spiders

  • All spiders make silk and produce venom.


Metamorphosis

Metamorphosis

CHANGE IN FORM FROM EGG TO ADULT


Incomplete

Incomplete

INCOMPLETEMETAMORPHOUS

Insects change shape gradually!


Arthrppods

CompleteMetamorphosis

Four stages that all look different


Insects with complete metamorphosis

Insects with Complete Metamorphosis

  • beetles

  • bees, ants, wasps

  • Flies

  • butterflies

EGG  LARVA  PUPA  ADULT


Insects with incomplete metamorphosis

Insects with Incomplete Metamorphosis

EGG  NYMPH  ADULT

  • fleas

  • grasshoppers & crickets

Wings NOT fully developed


  • Login