'Aboral surface' presentation slideshows

The Deuterostomes

The Deuterostomes. Echinoderms and Chordates. Developmental Variations. During embryonic development, the process of gastrulation forms the digestive cavity. Gastrulation varies in the animal kingdom No gastrulation ( placozoans ) Incomplete gastrulation

1.52k views • 50 slides

Deuterostomes

Cephalochordates Urochordates (Ascidians) Vertebrates (us). Deuterostomes. Hemichordates Echinoderms. Protostomes. Spiralia (Platyzoa, Polyzoa, Trochozoa..) Ecdysozoa (Arthropoda, Nematoda..). Embryonic Development: Early Cleavage. Zygote. Protostomes. Deuterostomes. Radial,

1.11k views • 35 slides

Aboral surface with Madreporite

Central disk Arm or ray Madreporite Spines Eye spot ( oce llus ) at tip of each ray. Aboral surface with Madreporite. 5. 1 1 1 1. 2 2 2. 5. 3. 4. 4. 5. 5. 3. spine. 3 3. 6. Central disk Arm or ray

407 views • 30 slides

Animals sans Backbone

488 views • 30 slides

PHYLUM ECHINODERMATA

509 views • 22 slides

Sand Dollars

Sand Dollars. Sand Dollars : part of the Echinoderm phylum. Closely related to sea urchins Class Echinoidea : sea urchins & sand dollars. Where do they live ? . In the Intertidal Zone of the beach (your best chance at seeing one would be when the tide is at a low level) .

709 views • 16 slides

Deuterostomes

Deuterostomes. Phylum Echinodermata. Water vascular system. Starfish moving view from aboral surface Starfish moving view from oral surface. Note bilateral larvae!. Phylum Chordata. Pharyngeal gill slits Dorsal hollow nerve cord Notochord Muscular, post-anal tail. Phylum Chordata.

369 views • 15 slides

Dissection of a Sea Star

Dissection of a Sea Star. Adult Sea Stars have penta-radial symmetry; therefore, each ray or arm contains the same organ structures as the other arms. The structures in the central disc are not in multiples of five. Photos by Dr. J. Whaley Flagler Palm Coast High School 2013.

314 views • 12 slides