Rat Dissection

      This dissection was probably they most fun and grossest one we did so far, smell was okay the first day but the second day the rat smelled 10x worse. The rat dissection helps us understand more about our anatomy because the rat is bilaterally symmetrical like us, just like taking a look at our insides. I learned that rats use thier tails for balance and regulate thier body temperature, also rats like to pee everywhere because thats how they mark they territory. From opening thier stomach figured out that rats eat lots and lots of dirt. Personally this was probably the best dissection we did the whole year because it was gross yet so fun at the same time.

DISCUSSION QUESTIONS

 1.) The hands are the best because it possesses the best motor skills and prescion.

2.) So we know what we are seeing when we look at the diagrams.

3.) The rats tail helps with balance and control the rats body heat.

4.) Vibrissae help with sensing things around them

5.) It has two matching sides when cut directly in half

EVEN MORE DISSCUSION QUESTIONS

1.) A sphincter normally maintains constriction of a natural body passage or orifice

2.) The large intestine absorbs water, nutrients, and salts. The smaller one absorbs carbohydrates, protien, fats and minerals. Small also helps with digestion, large helps with reabsorb

3.) Liver helps with detoxification, protien synthesis and production of biochemicals nessecary for digestion.

4.) Duodenum is Latin for 12 fingerlengths.

5.) In omnivores and herbivores it helps with the digestion of cellulose.

BUT WAIT THERES MORE

1. The precardium prevents the heart from over expanding when the blood volume in the heart increases.

2.) The fuction of the spleen is to remove old red blood cells and remove and restore WBC's

3.) the main function of the diaphragm is to help move air in and out of the lungs.

4.) The atrium collects blood from the veins that are connected to it. The ventricles uses the squeezing actions of muscles to pump blood out of the ventricles

5.) It's thicker because the left ventricle pumps blood out at a higher pressure

6.) They both produce gametes, they both have storage system where they keep thier eggs and sperm.

7.) The kidneys regulate the bodys fluid volume, mineral compostion and acidity by excreting and absorbing water.

8.) The thyroid , thymus and adrenal gland are part of the immune system. The thymus gland produces T-Cells, the thyroid controls how quickly the body uses energy, also makes protiens. The adrenal gland is mainly responsible for releasing hormones on response to stress.

Zoology Webquest

 

Platyhelminthes

 

 

Phylum: Platyhelminthes

Genus: Pseudobiceros

Species: Bedfordi

 

Phylum: Platyhelminthes

Genus: Pseudobiceros

Species: P.dimidiatus

 

Phylum: Platyhelminthes

Genus: Pseudoceros

Species: P.dimidiatus

Cnidaria

 Phylum: Cnidaria

Genus: Chrysaora

Species: C. quinquecirrha

 

 

Phylum: Cnidaria

Genus: Epiatis

Species: E. Prolifera

 

Phylum: Cnidaria

Genus: Dendrogyra

Species: D. Cylindricus

Porifera

 





Phylum:Porifera

Genus:Aplysina

Species: A. acrheri

 

Phylum: Porifera

Genus: Spongia

Species: S. officinalis

 

Phylum: Porifera

Genus: Spongilla

Species: S. lacustris

 

 

 

 

 

 

 

Annelid Dissection

  The purpose of the annelid disection is to gain more anatomical knowledge about annelids, also to see how well we can indentify their internal organs and such. Dissections help us gain more information on the biological world because, we get to see many different organ structures of many different species and we also see how differently they eat, digest, excrete wastes and function differently from other species. This dissection greatly relates to what we are learning in class, before we saw the inside of the earthworm on paper, but with the dissection we get to see the internal organs in person. Personally I think its awesome that we did this dissection, we got to see stuff we probably would have never seen without this dissection.

1. What is the name of the pumping organs of an earthworm?
They are called the aortic arches, which are hearts, although
they do not contain valves and chambers.

 

2. Trace the parts of the digestive tract?
The food passes through the pharynx and
passes through the esophagus, then the crop
and the gizzard and finally through the
intestines.

 

3. Which parts of the earthworm serve as its brain
The brain is above the pharynx and connected
to the ventral nerves; it is firmly attached.

 

 

4. Which parts of the worm/excretory system?
The excretory system goes hand in hand with the
digestive system. However, a pair of nephridia
in each body segment helps remove waste

 

5. How can you find out whether an earthworm eats soil?
Put it in soil and examine its excrement in a glass jar

 

 

6. What are Setae?

They are like little black stubbles.
Setae are the small bristles that are good
for brushing against the soil, basically, providing
traction in the soil

 

Forgot other pictures and questions.

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Fungi Hunt Blog

 Well I was sick that day, so I wasn't able to go on the walk. From what I hear from other classmates is that there was Club fungi everywhere. In class we learned about Ascomycota (sac fungi), Basidiomycota (club fungi), Oomycota (protistlike fungi), Zygomycota (common moulds). Also heard they were some lichens on a lot of different surfaces. Hopefully on the next walk I won't be so sick. Couple of pictures of different species of mushrooms in BC:

<- Apricot Jelly Mushroom















                                   Bear's Head Tooth Mushroom ->

<- Cauliflower Mushroom

                                                             
                                                     Blue Chanterelle ->

<- Chicken of The Woods

                                     Comb Tooth Mushroom ->

<- Common Puffball Mushroom

                                                                              Black Morel ->