Chapter 12 - various functions Pinacocytes = flat cells...

Info iconThis preview shows pages 1–16. Sign up to view the full content.

View Full Document Right Arrow Icon
CHAPTER 12 MESOZOA AND PARAZOA
Background image of page 1

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Outline Metazoa Phylum Porifera General characteristics Major groups
Background image of page 2
Metazoa Multicellular Origins Syncytical ciliate hypothesis Colonial flagellate hypothesis
Background image of page 3

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Phylum Porifera Phylum Porifera Sponges Mostly marine Specialized cells No tissues Ostia, canals, chambers Sessile
Background image of page 4
Phylum Porifera Skeletons Fibrillar collagen Spongin Calcareous spicules Siliceous spicules
Background image of page 5

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 6
Phylum Porifera Reproduction Asexual - Budding, fragmentation, gemmules Sexual - Monoecious
Background image of page 7

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Phylum Porifera Types of canals Asconoid Syconoid Leuconoid
Background image of page 8
Background image of page 9

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Phylum Porifera Types of cells Choanocytes = flagellated cells lining cavities and canals Archaeocytes = ameboid cells with
Background image of page 10
Background image of page 11

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 12
Background image of page 13

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 14
Background image of page 15

Info iconThis preview has intentionally blurred sections. Sign up to view the full version.

View Full DocumentRight Arrow Icon
Background image of page 16
This is the end of the preview. Sign up to access the rest of the document.

Unformatted text preview: various functions Pinacocytes = flat cells covering surface Phylum Porifera • Class Calcarea Calcium carbonate spicules Small Asconoid, syconoid, or leuconoid Grantia, Leucosolenia Phylum Porifera • Class Hexactinellida Siliceous spicules Deep sea Cylindrical or funnel shape Syconoid or leuconoid Euplectella Phylum Porifera • Class Demospongiae Largest class Siliceous spicules Leuconoid Mostly marine Spongilla Review • Metazoa • Phylum Porifera General characteristics Major groups Reminders • Read Chapter 12 • Exam 3 • Lab Practical 2...
View Full Document

This note was uploaded on 04/03/2008 for the course BIOL 1413 taught by Professor Veazey during the Spring '08 term at Southwest Texas Junior College.

Page1 / 16

Chapter 12 - various functions Pinacocytes = flat cells...

This preview shows document pages 1 - 16. Sign up to view the full document.

View Full Document Right Arrow Icon
Ask a homework question - tutors are online