'Calcareous spicules' presentation slideshows

Phylum Porifera

Phylum Porifera. (Pore bearing) Sponges. Phylum Porifera Overview. Most primitive of the multicellular animals There is some debate if sponges are complex colonial protozoans and not metazoans Sponges Over 7,000 species 2% of all sponges are freshwater, none are terrestrial.

964 views • 27 slides

Echinoderms

447 views • 23 slides

The Burgess Shale Fauna

The Burgess Shale Fauna. Modern Location. Yoho National Park, Canadian Rockies, British Columbia, Canada. The famous Phyllopod Beds of the Walcott Quarry. The Cambrian World ~ 525 MYA. Red = Mountain Belts Dark Blue = Deep Ocean Basins Light Blue = Shallow Seas. Phylum Arthropoda.

401 views • 9 slides

Curriculum preview

By Ms .AZRA ARIF D.A DEGREE COLLEGE FOR WOMAN PHASE VIII. Curriculum preview. Characteristics Pore bearer organism Diploblastic ,asymmetrical, aquatic organism Canal system Asexual reproduction Have three classes. PHYLUM PORIFERA. Have calcareous spicules Examples Ascon , sycon.

170 views • 5 slides

Curriculum preview

By Ms .AZRA ARIF D.A DEGREE COLLEGE FOR WOMAN PHASE VIII. Curriculum preview. Characteristics Pore bearer organism Diploblastic ,asymmetrical, aquatic organism Canal system Asexual reproduction Have three classes. PHYLUM PORIFERA. Have calcareous spicules Examples Ascon , sycon.

156 views • 5 slides