phylum annelida n.
Download
Skip this Video
Loading SlideShow in 5 Seconds..
PHYLUM ANNELIDA PowerPoint Presentation
Download Presentation
PHYLUM ANNELIDA

Loading in 2 Seconds...

play fullscreen
1 / 30

PHYLUM ANNELIDA - PowerPoint PPT Presentation


  • 160 Views
  • Uploaded on

SEGMENTED WORMS. PHYLUM ANNELIDA. Don’t try this at home! . many bristles. CHARACTERISTICS :. SEGMENTED BODY. BILATERAL SYMMETRY. MANY WELL DEVELOPED SYSTEMS. RAPTORIAL FEEDERS: ex: CLAMWORM & BLOODWORM. Blood worms have 4 jaws.

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

PowerPoint Slideshow about 'PHYLUM ANNELIDA' - helga


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
slide3

many bristles

CHARACTERISTICS:

  • SEGMENTED BODY
  • BILATERAL SYMMETRY
  • MANY WELL DEVELOPED SYSTEMS
raptorial feeders ex clamworm bloodworm
RAPTORIAL FEEDERS: ex: CLAMWORM & BLOODWORM

Blood worms have 4 jaws

RAPTORIAL FEEDERS: HAVE HOOK-LIKE JAWS HELD INSIDE THE BODY WHICH STRIKE OUT TO GRAB PREY. FOOD IS THEN PULLED BACK INSIDE OF THE BODY & DIGESTED.

clam worm raptorial feeder
CLAM WORM - RAPTORIAL FEEDER

TENTACLES sense of touch, taste/smell

SEPTA walls separate segments

JAWSgrasp prey

PHARYNX pushed out to feed

PARAPODIA act as gills (absorb oxygen) & used to crawl & dig

suspension feeders
SUSPENSION FEEDERS
  • FILTERFEEDERS
  • FOOD IS TRAPPED BY FEATHERY TENTACLES & BROUGHT TO THE MOUTH
  • LIVE IN TUBES THEY CREATE (SAND, CALCIUM)
  • EXAMPLES: FAN WORM FEATHER DUSTER WORM
suspension feeders1
SUSPENSION FEEDERS

TENTACLES

MOUTH

TUBE

slide16

AFTER

BEFORE

deposit feeders
DEPOSIT FEEDERS
  • USE STICKY TENTACLES TO FIND FOOD ON THE SURFACE OF SEDIMENT
  • LIVE IN BURROWS IN SAND/MUD

GILLS

cross section
CROSS-SECTION

DORSAL BLOOD VESSEL CLOSED SYSTEM!

MUSCLES

REPRODUCTIVE CELLS

INTESTINE

PARAPODIA

SETA / CHAETES

SPINES

VENTRAL NERVE CORD

NEPHRIDIA

VENTRAL BLOOD VESSEL

functions of organs systems
FUNCTIONS OF ORGANS/SYSTEMS

INTESTINE – ABSORB NUTRIENTS

MUSCLES – CAUSE MOVEMENT

BLOOD VESSELS – CARRY BLOOD

PARAPODIA – CRAWLING/DIGGING

NERVE CORD – CARRIES MESSAGES TO/FROM THE BRAIN

NEPHRIDIA– EXCRETE URINE

SETA/SPINES – HELP MOVE INCREASE TRACTION