Invertabrates

Yesterday in class we talked about invertebrates.



-First we turned in our unit packet pages (14,21-28) and our invertebrate profiles.

-After turning the assignments due we went over our green charts which discussed invertebrate animal phylums.

(Does not include unique characteristics)
Porifera:
-Drift or swim freely
-Have no symmetry
-Sexual and asexual
-Have many holes
-Do not have any systems present
-Yellow Sponge, Tube Sponge, Bath Sponge



Cnidaria:

-Stationary, free swimming, jet propulsion
-Radial symmetry
-sexual and asexual
-1 body opening
-Simple nervous tissue & simple digestive system
-Coral, Jellyfish, Sea Annemony, Hydra

Nematoda:

-Free living using cilia & muscles
-Bilateral symmetry
-Hermaphroditic sexual reproduction, asexual by fission
-2 body openings
-Nervous, digestive, excretory systems
-Round worms, Ascaris, Vinegar Eel:

Platyhelminthes:

-Muscles work with hydrostatic skeleton
-Bilateral symmetry
-Sexual
-1 body opening
-Nervous, digestive, excretory systems
-Flatworm & Planaria

Annelida:

-Hydrostatic skeleton
-Radial symmetry
-Sexual & some hermaphroditic
-2 body openings
-Nervous, digestive, excretory, circulatory
-Leach & Earthworm

Mollusca:

-Stationary, jet propulsion
-Bilateral symmetry
-Sexual & some hermaphroditic
-2 body openings
-Nervous, digestive, excretory, crculatory, respiratory
-Colossal Squid

Anthropoda:

-Jointed exoskeleton & walking
-Bilateral symmetry
-Sexual
-2 body openings
-Nervous, digestive, excretory, circulatory, respiratory
-Land Crab

Echinodermata:

-Endoskelton
-5 part radial symmetry
-Sexual & most have seperate species
-1 body opening
-Nervous, digestive, excretory, water vascular system (respiratory & circulatory)
-Starfish
After we went over the green chart wemoved on to the lab. In the lab we looked at a grasshopper, a spider, and a crayfish, all three very different invertebrates. The lab showed us the differences and similarities in the different species.

Hw: 24-25 in the unit packet

Next scribe is..DAVID!

Bio Day

Today we were in the auditorium for Bio Day watching a documentary called the Rise of the Super Bug. This documentary is important because it shows us just how lucky we are to have medicines to help prevent death. Surprisingly enough, before the twentieth century there weren't any medicines. This was especially difficult during wars before medicine since there were so many infectious diseases that led to a ton of deaths throughout the wars. The discovery of the first medicine, Penicilan, by Alexander flemming is one of the most important discoveries ever. Penicilan antibiotics were very important because these is the first drugs that were effective against serious diseases. Rise of the Super Bug showcases some of the world's most deadly infectious diseases such as Tuberculosis. Tuberculosis is an example of a disease that can be resisitant to some of our best antibiotics. When will we find a way to stop these Super Bugs and how long will it take????

Yvette will be the next scribe