Module 5: Marine Invertebrates II – Part 2

October 28, 2014 PowerPoint Honors Marine Biology Module 5 Invertebrates part 2

Thanks goes to all who participated in the class challenge of “Best Costume”.  Winner is James!  costume challenge

Next weeks challenge:  Who can do the most push-ups!

Phylum Arthropoda  meaning “Joint – Foot” is a group of organisms that have literally taken over our planet. There are more of this phylum than in all the other phyla in the animal kingdom combined.  Arthropods can be found in all types of environments in creation and are represented in the ocean by many species. Marine arthropods are Shrimp, Lobsters, Barnacles and Crabs.  All arthropods are bilaterally symmetric and their bodies are covered with a jointed suit of armor encompassing not only their abdomens but also their appendages and mouth parts.  Their armor is called exoskeleton and is made of chitin.  Arthropods must shed their exoskelton in order to grow.  This is called Molting.

Crab

Crab

Barnacles

Barnacles

 

 

 

 

 

Lobster

Lobster

We also examined Phylum Echinodermata which is exclusively marine phylum. (sea stars, sea urchins, and sand dollars).  They have a Water Vascular system which is a network of water-filled canals in echinoderms, used for locomotion and feeding. They have Pentamerous Symmetry.

Echinoderms

Echinoderms

In class we examined the following specimens:  Lobster, sea star and horseshoe crab. Complete your diagrams in your lab book for each.

module 5 diagram lobster, sea star, horseshoe crab

 

Homework:

  • Take Module 5 Test
  • Read Module 5 Pages 108 to 124
  • OYO 5.7 to 5.14
  • Study Guide Define f – L and questions 13 – 22.
  • Finish up diagrams in lab book
  • Quiz: Parts of the Lobster
  • Class Challenge: Who can do the most push-ups

Have a great week! -Mrs. S

Hermit Crab Races

Hermit Crab Races

 

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