Muddiest Point

I am confused what the ecological, economic, and humanistic importance is to invertebrates and the ecological, economic, and humanistic aspects of vertebrates.

Middiest point

My muddiest point is that I still do not understand the difference between Agnatha, Chondrichthyes, and Osteichtyes.

Class on Thursday, 2/23

Today in class, we worked on a lab called the General Classification of Vertebrates on pages 41-42. In this lab, we observed many vertebrates which were preserved in jars and we used the identification key in the lab to figure out which kingdom, phylum, and class that vertebrate belonged to. At the end of class we just watched a bit of a video about reptiles.

Our only homework for today was to comment on a Muddiest Point, due Tomorrow. Also study for our unit test on Monday! Remember that the TV add is due Tuesday, the 28th.

Also we had a sub today, so we didn't hand in our homework on pages 54-55.

KEVIN will be the next scribe

Muddiest point

My muddiest point is the difference between chordates and vertebrates

Muddiest Point- PatrykS

My muddiest point is understanding: Humanistic importance of invertebrates...I dont understand the concept well enough.

Muddiest Point

what are the differences between the classes of fish, and what are example of each?

JoeM's muddies point

My muddiest point is the difference between a vertabrate and a chordate.

Scribe 2/22

First, we handed in our homework which was lab pages UP30-31. Then, we learned about the animal of the day. Today, the animal was a narwal. It belongs to the mammalia class. A narwal is a type of white whale and it has a "unicornlike horn" on its head. Nobody knows why it does, but one theory is that it uses it to joust with other narwals. After, we took our quiz on the vertebrate chart and we were allowed to use our charts. Next, Mrs. Stein went over notes with us. Here are the notes:

Phylogenic Trees

- shows evolutionary relationships

Embryo Development

- protostomes: mouth develops first

- most invertebrates

- deuterostomes: anus develops first

- chordates, echinoderms

Body Cavity Evolution

- coelom: body cavity lined fully with mesoderm

- supports internal organs and movement

- acoelomates: no cavity

- pseudocoelomates: cavity partially lined in mesoderm

- roundworms(nematods)

- coelomates: cavity completely lined in mesoderm

- annelids, mollusks, humans

Chordate characteristics

1. Notochord- supportive rod thru the dorsal side

2. Pharyngeal gill slits- present @ some point in development

3. Dorsal hollow nerve cord

4. Tail

After we finished the notes, Mrs. Stein explained the homework and wevhad a little time to work on it.

HOMEWORK:

1. Test Monday!!!!

2. Muddiest Points due by TONIGHT!

3. Muddiest Point Comments due by Friday @ Midnight! And yes they are mandatory. They are not optional this time!!!

4. Finding Oddball UP54-55 due TOMORROW

5. TV Ad due 2/28

NEXT SCRIBE IS ANDRIJANA!

Muddiest Point

My muddiest point is the difference between chordates and vertebrates. How can all vertebrates be chordates, but not all chordates be vertebrates?

Muddiest Point

My Muddiest point is what animals are in the aves section?

Muddiest Point

My muddiest point is on the whole invertebrate section. Any key characteristics that are very helpful for EACH group that could help me distinguish one from another.

Muddiest Point 2/22

My muddiest point in this unit is the humanistic and economic importance of invertebrates. What are those again?

my muddiest point

My muddiest point this unit is the "Humanistic importance of of invertebrates". If you can help explain this that would be great.
Thanks,
Paul Salay

Muddiest Point

My muddiest point is on the body cavity. I am confused on coelomates, acoelomates and psuedocoelmates.

Thanks!

SCRIBE 2/21

Today in class we started with Animal of the Day #5, which was the Frill-Necked Lizard. This animal is in the class Reptilia and is sometimes called the "Frilled Dragon". Also, this lizard runs bipedally and is currently endangered. We also got our Invertebrate Quiz returned and went over questions that students had.

In class we also did an Arthropod Lab. During this lab we observed preserved items. The three items that we looked at were a grasshopper, a crayfish and a spider. While observing we completed a chart on the characteristics of these items.

For homework tonight you should finish the lab, UP 28-31 and complete your PINK vertebrate chart. Also, post your muddiest points on the blog and be sure to comment! There will be a QUIZ tomorrow on your pink chart, you will be aloud to use the pink chart on the quiz!

Next Scribe: Gabby!

Muddiest Point

My muddiest point in this unit was understanding the difference between the 3 groups of fish: Agnatha, Chondrichthyes, and Osteichthyes. Thanks!

GabbyM's Muddiest Point

My muddiest point for this chapter is what is the humanistic and economic importance of invertebrates. Thanks!

Scribe 2/17

The first thing we did in class on Friday was turn in the homework that was due. Then, we took the invertebrates quiz. We were allowed to use the green chart that we filled out. After everyone finished the quiz, we went to the back of the room to finish the labs we were working on. There were two different labs that we had to do. The first was in the UP packet, pages 13 and 14. The second lab was in the UP packet, pages 19-27. Pages 13 and 14 were looking at 15 jars with different invertebrates in them. We had to then find out what phylum the organism was by looking at it, then using the DICHOTOMUS KEY on page 13. The second lab was spread between all of the lab benches. There were 8 different stations with several things to look at and find out. In pages 19-27 there were multiple questions that you had to answer according to the different stations. (I can't put pictures on here, cause something is wrong with my computer) Some pictures that i took were of Starfish at station #7, molluscs at station #6, and phylum porifera at station #1.

**Homework:
1) Invert Profile (UP 3 and 4) due Tuesday

2) Chordate Chart (Pink chart) due Wednesday

3) Work on TV ad due 2/28

***The next scribe will be: Sara***

Scribe 2/16

  Today in class we saw a video about The Dumbo Squid   It is a squid with ears or flappers on its head to help move the squid  and it is In the phylum Mullsca It lives in underwater in deep water. Here is  the video we watched in class .http://www.youtube.com/watch?v=fDxBVZhZZwI after that we talked about our Classification of invertebrates lab UP 19-27 how we do it and what we can do. there were some animals that we could touch and hold Bess bug and the millipede in the arthropoda station. there were 8 stations  porifera, cnidaria, platyhelinthes, nematoda, annelida, mollusca, echinodermata, and arthropoda. we did the lab for the rest of the day and the green invertebrates chart is due tomorrow.                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                       

Scribe 2/15 Wednesday

In class Today we started to talk and discuss animal of the day Axolotl  this animal is an amphibian and the strange part is it does not go through metamorphosis or doesn't change into a land dweller hers is the Cool AWESOME Video  http://www.youtube.com/watch?v=MxA0QVGVEJw after that we discussed the quiz and we did a little review of the basic taxonomy specifications.  After we reviewed we did the Shark Key worksheets it was UP(9-12) we were suppose to use the key to figure out the name of the sharks. homework finish the shark key and 26.1.

Muddiest Point- PatrykS

My muddiest point is what is the difference between Lanmarks and Darwins theory

Joe M's Muddiest Point

I'm confused about how genetic drift works. What is the concept of it?

Muddiest Point

what is the difference between Darwin and Lamarks theories

Muddiest Point

I kind of do not understand what co evolution and convergent evolution are.

Muddiest Point

I do not understand the "similarities of embryos, homologous structures, vestigal structures, and biochemical similarities"

GabbyM's Muddiest Point

My muddiest point for this chapter is the difference between relative and absolute dating.

Muddiest Point

The thing that i am most confused about is the difference between Darwin and Lamark's theories.

AndyD Scribe Class 2-6-12

Today we went over and Reviewed Evolution and Half Lifes!

To review half lifes we answered a question on page 29 of our unit packet (question B) this is also a great source of reviewing for Half life problems for the test on thursday! We then went over some class notes which then led us to beginning and almost finishing our labs in which we had to measure an compare the Jaw width and the Diameter of the brain capacity of a 1.Gorilla 2. Australopithicus (Lucy from the bio day movie) 3. Human. While doing the lab we had to fill out one of the pages between 42-47 that asked us to compare all of the 3 skull structures. After that you had to compare the Jaws with the teeth and the animals pelvis's. The data helped us understand and compare how each kind of organism that developed from that one ancestor that connected apes and humans.

Homework-

1. Finish Up 42-47

2. Read 26.3 with Cornel Notes or Check My Understanding Strategy.

Scribe 2/3/2012

SCRIBE POST!!!!!!!!!

Today in class we talked a lot about Half Lifes.

Which is the time period it takes for a certain substance to decay by half.

We also went over a few half life problems which i was struggling with a lot and so were others in the Class.

To help incorporate our lesson with half lifes we did an M&M lab---------------->

in which we had to count out 100 M&M's and then place them into a cup and shake for 10 seconds and pour the M&M's into the paper plate and all the M&Ms with the M facing up were to be eaten and then we would repeat the process shaking the M&Ms and adding 10 seconds onto each time we shook the container. After we finished with the lab we were given the right to eat the M&Ms and then begin working on the

HOMEWORK-

Finish UP 31-32 Use LINE GRAPH! NOT BAR GRAPH!

AndyD's Muddiest Point

My muddiest point is on the difference between Darwin and Lamarks theories.

Muddiest piont OJ

My muddiest point is how to do half live problems

Muddiest point

My muddiest point is what the differances between darwin and lamarks theries were?

Muddiest Point 2/7

My muddiest point is all about Darwin. What was his theory? What is the concept of "survival of the fittest" and "descent with modification?" I am kind of confused with those.

Thanks,
Jessie

Muddiest Point- Sammy K

How does Photosynthesis and aerobic respiration have an impact on the process of evolution?

My Muddiest Point

In this unit I am having trouble understanding co-evolution and convergent evolution, and their relationship with the modern evolution theory.

Thanks,
Paul Salay

Muddiest Point

My muddiest point is the difference between punctuated equilibrium and gradualism. I don't understand the difference between them, and the difference between their graphs.

Muddiest Point

My muddiest point in this unit is understanding why the anthropoids and the hominoids are two separate classes, since they are both primates. Can someone please explain?

Thanks!
-Andrijana

Scribe 1/31

Today in class we reviewed Darwin and Lamarck in UP 13.

Question 1 - Mutations and genetic recombination are responsible for variations among offspring. Answer: neither, because no body knew about DNA at this time.

Question 2 - There is a struggle for existence among organisms. Answer: Darwin only because he believed that organisms compete and only the fittest will survive.

Question 3 - Modern giraffes are descendants of short-necked ancestors. Answer: Lamarck only because he believed in acquired characteristics.

Question 4 - Two mice whose tails hab been cut off should produce offspring with no tails. Answer: Lamarck only

Question 5 - There is a tendency towards overproduction in nature. Answer: Darwin only because the species overproduce to make sure they pass down their genes.

Question 8 - If you lift weights, your children will be born with strong muscles. Answer: Lamarck only.

Question 14 - All organisms have an inborn urge to better themselves and become more fit for their environment; thus birds developed wings because of this urge. Answer: Lamarck.

We also completed Lab 38, which was based on eveidence for evolution. There was questions about vestigial structures, comparative embryology, and we also colored a picture of different animals bones.

Scribe 2/2

Homework:
1) READ 19.1 (Skip Pages 544 and 545).
2) Unit Packet 33-36
3) TV Ad on FEB 28

Today in class we first looked over pages 33-36 in our unit packet. Afterwards we watched a Bill Nye Video and learned that:

• Contents of the clay in KT has Iridium which is something only found in space (this is evidence that there was an asteroid which had hit earth in the past).
• That an asteroid made all living creatures on earth perish (dinosaurs, etc.)
• The asteroid was said to be 8 times bigger than the grand canyon.
• A man made an experiment where he took a chamber that had gasses which were used back in time and then placed energies into it which created amino acids. (this shows that this may of been the reason how life was created).

SCRIBE 2/1

Today in class we started off by taking notes on genetic variation, genetic drift, and speciation. genetic drift is changes in the gene pool of a small population due to chance.

We then learned about variation in Grasshopper legs by working on Lab 40. With our lab groups, we were asked to measure the length of 5 grasshoppers' femurs. This data was then used to find the average femur length from all the grasshoppers. The different lengths of femurs represent variation-a change in gene frequency.

The homework for tonight is to finish lab 40, read 19.2, and the T.V. ad that is due on feb. 28.