Here is the mind map we created during our first lesson.
Us and them? how are we (HomoSapiens) related to a tapeworm and all living animals? what gave such large diversity of species?
Always keep handy your phylogenetic tree of the animal kingdom, we will be using them every class as we move forward from simple (primitive) organisms to more complex (further evolved) organisms.
PORIFFERA - CNIDARIA (RADIATA) - PLATYHELMINTHES - NEMATODA - MOLLUSCA
ANNELIDA - ARTHROPODA - ECHINODERM
Porifera, Cnidaria & Platyhelminthes slides
Nematoda & Mollusca slides
Annelida & Echinoderm Slides
Ms. Ng's arthropoda slides
IMPORTANT! - What is a coelom and why we need a coelom? WATCH THIS VIDEO!
Up to minute 7:30, the rest is fun facts.
- For Tuesday, Feb 28, 1-1 & 1-3 blocks must bring with you a list of the parts of a squid with their functions.
- For Friday, March 1, 2-4 block must bring with you a list of the parts of a squid with their functions.
We will be doing a squid dissection, without this list you cannot participate in the dissection.
Dissection Write-up TOTAL 30 marks: 1-1 & 1-3 due on Monday, March 6.
2-4 due on March 7
The write-up for this lab is individual. Now that you have dissected your squid, you can compare your observations with the parts that you discover through your brief research (homework).
- Did it have all the parts you found before the dissection?
- Which parts do you now see if you compare it to a diagram?
OR Which parts did your specimen NOT have that you found in your research?
- IMPORTANT: How are these parts an evolutionary trait and how is it of an advantage or disadvantage to the animal for surviving?
Homework TOTAL 10 marks:1-1 & 1-3 due on Monday, March 6.
2-4 due on March 7
Answer the following questions:
What phylum does the squid belong to?
What family does it belong to?
Which other 2 families are the cousins or are related to the squid?
Out of the three families, which one is the most primitive and the more advanced and why?
What is are the evolutionary differences between the squid phylum and the roundworm phylum?