Lab 6.docx - EXERCISE 6 Sponges Archaeocyathans and...

  • No School
  • AA 1
  • 5

This preview shows page 1 - 3 out of 5 pages.

EXERCISE 6 Sponges, Archaeocyathans and Cnidarians Laboratory Exercise 6: Sponges, Archaeocyathans and Cnidarians (1) Accurately draw and label a portion of the sycon grade of sponge organization to demonstrate the characteristics of the grade. 6. 1 Sponges, Archaeocyathans & Cnidarians
Image of page 1

Subscribe to view the full document.

Genus: Grantia (2) For each demosponge, hexactinellid, and calcarean, give the class, overall shape of the sponge; grade; and composition, number of axes and type of spicules, in the table below. Spicules Genus Class Shape Composition # of Axes Spicular type Amblysiphonella demospongea Chain-like silica 1 monoaxon Astylospongia demospongea circular silica 1 monaxon Hydnoceras hexactinellid Lattice-like silica 3 triaxons Astraeospongia calcarea Star-shaped CaCO 3 5 polyaxon (3) Specimens of the classes Regulares and Irregulares are provided, as slide (5.1) and etched whole specimen (5.2). They may have generic names on their labels but their class is not given. Determine the appropriate class for each (see attach Figure 6.6 for examples), list the features labeled on Figure 6.6 that are visible on
Image of page 2
Image of page 3
  • Fall '19
  • Cnidaria, Archaeocyathans & Cnidarians

What students are saying

  • Left Quote Icon

    As a current student on this bumpy collegiate pathway, I stumbled upon Course Hero, where I can find study resources for nearly all my courses, get online help from tutors 24/7, and even share my old projects, papers, and lecture notes with other students.

    Student Picture

    Kiran Temple University Fox School of Business ‘17, Course Hero Intern

  • Left Quote Icon

    I cannot even describe how much Course Hero helped me this summer. It’s truly become something I can always rely on and help me. In the end, I was not only able to survive summer classes, but I was able to thrive thanks to Course Hero.

    Student Picture

    Dana University of Pennsylvania ‘17, Course Hero Intern

  • Left Quote Icon

    The ability to access any university’s resources through Course Hero proved invaluable in my case. I was behind on Tulane coursework and actually used UCLA’s materials to help me move forward and get everything together on time.

    Student Picture

    Jill Tulane University ‘16, Course Hero Intern

Ask Expert Tutors You can ask 0 bonus questions You can ask 0 questions (0 expire soon) You can ask 0 questions (will expire )
Answers in as fast as 15 minutes