Fossils B/C

ChimpLopez
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Re: Fossils B/C

Post by ChimpLopez »

Havocgamer49 wrote: Mon Jan 20, 2020 5:51 am
ChimpLopez wrote: Sun Jan 19, 2020 3:22 pm
twig wrote: Sun Jan 19, 2020 2:49 pm

The first invitational that we went to, the girl proctor told everyone in the class that they were going to measure each team's binder by the spine. However, the Jeffrey Trail team said that "According to the rules, the binder must be measured by the interior diameter of the rings (2 in)." Then she came and checked us at the end of the test. The binder that my partner and I have is 3 in, with a 2 in diameter. It's better to keep in mind that some proctors may check or remind you that at regional and state, they need to fit the limits
The second invitational that we went to yesterday, they did not check the binders, but they warned us about the limit. No team (as I recall) had a binder over the limit.

I would technically say, it depends...
Also, the girl hated us, and the proctors from yesterday did not.
I am very thankful for the suggestions that you gave me too (for anatomy)! We'll fix our binder so that we can get the third place from Mesa to a 1st place at Jeffrey Trail.
Oof I hope they measure our rings at regionals/states. Our binder's spine is also larger than 2 inches but the rings are 2 inches. We worked so hard to slim our binder down at I hope it pays off. We have d-slant rings instead of the standard run of the mill circular rings. I think they flip the pages smoother and are able to fit more pages. I might just be reading too much into the shape of the rings lol

And no problem for the anatomy suggestions ;)
At Piedmont Invitational they also measured our binder size, but they did so from the exterior stem, and our binder was measured at 2.5 inches. However they really did not care and let us compete. Our school's other team's binder came in at 3 inches, but it is actually 2 if you measure the rings. This is the first time someone has ever measured our binder in 2 year and I was pretty surprised. How likely is it that they do this at Regionals?
Well last year there was no size limit, so no one measured the binders. This year they added binder size limits to most of the binder events in the rules, so proctors should start to measure them especially at regional/state levels. I would be surprised if they didn't measure the binders at regionals, just because its a new rule that they would probably want to make sure they are enforcing. I think they definitely will measure, but it honestly depends on the event supervisor to say whether or not they will DQ you for it.
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Re: Fossils B/C

Post by twig »

The test my partner and I had on Saturday was filled with a bunch of trivia. (about 4 stations on trivia, the rest id, lagerstatten, absolute dating, relative dating, somewhat evolution of tetrapods)
Examples of some random questions that I remember on the random section or any section

[hide]Random
- group of Dracorex
- parts of the crinoid stem
- How many theca a specimen had
- a comic that had mermaids on it representing some fossils

Relative Dating
- what is a clast
- what is a facies

Absolute Dating
- oldest specimen of C-14
- oldest specimen of K-40
- oldest specimen of Uranium 234 :?:[/hide]



Have any of you have had absurd trivia on your test? If so, can you provide the questions?
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Re: Fossils B/C

Post by anandymous »

twig wrote: Mon Jan 20, 2020 8:43 pm The test my partner and I had on Saturday was filled with a bunch of trivia. (about 4 stations on trivia, the rest id, lagerstatten, absolute dating, relative dating, somewhat evolution of tetrapods)
Examples of some random questions that I remember on the random section or any section

[hide]Random
- group of Dracorex
- parts of the crinoid stem
- How many theca a specimen had
- a comic that had mermaids on it representing some fossils

Relative Dating
- what is a clast
- what is a facies

Absolute Dating
- oldest specimen of C-14
- oldest specimen of K-40
- oldest specimen of Uranium 234 :?:[/hide]



Have any of you have had absurd trivia on your test? If so, can you provide the questions?
Aren't the questions about the parts of the crinoid stem and the theca question on topic because it's about the anatomy of the fossils?
The rest of the questions in that section are random trivia, though.
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Re: Fossils B/C

Post by twig »

They were somewhat sorted in the random trivia section on the test that we had.
Idk why tho
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Re: Fossils B/C

Post by twig »

Our test gave us a picture of a stromatolite --
They first asked what it was
Then asked what type of rock it would be???????
The answer key says its limestone?
I am confused why it is limestone :|

Plz explain
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Re: Fossils B/C

Post by anandymous »

twig wrote: Tue Jan 21, 2020 7:37 pm Our test gave us a picture of a stromatolite --
They first asked what it was
Then asked what type of rock it would be???????
The answer key says its limestone?
I am confused why it is limestone :|

Plz explain
I don't really know why, but according to Brittanica : Stromatolite is layered deposit, mainly of limestone, formed by the growth of blue-green algae (primitive one-celled organisms).
Wikipedia: Stromatolites or stromatoliths are layered mounds, columns, and sheet-like sedimentary rocks that were originally formed by the growth of layer upon layer of cyanobacteria, a single-celled photosynthesizing microbe.

Basically, stromatolites are mounds made by cyanobacteria that trapped debris in the mucus?? that formed over the layers of bacteria, and the debris is cemented with calcium carbonate to make limestone

Hope this helps (and is accurate)!
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Re: Fossils B/C

Post by twig »

Do you think that deuterostomes and protosomes will be tested?
I saw this on an MIT fossils test, but I am not sure about Division B tests for fossils.
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Re: Fossils B/C

Post by hmmm »

twig wrote: Wed Jan 22, 2020 2:49 pm Do you think that deuterostomes and protosomes will be tested?
I saw this on an MIT fossils test, but I am not sure about Division B tests for fossils.
Maybe, just chuck it into your general info section somewhere
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Re: Fossils B/C

Post by dchen22 »

I keep finding conflicting information on whether silicification and pyritization are permineralization or replacement. Do you guys know what the general consensus is?
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Re: Fossils B/C

Post by hmmm »

dchen22 wrote: Wed Jan 22, 2020 6:59 pm I keep finding conflicting information on whether silicification and pyritization are permineralization or replacement. Do you guys know what the general consensus is?
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