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What is considered the "major fossil groups" (regarding the "adaptations and morphological features of major fossil groups")? Are they like Cnidaria, Brachiopoda, Bryozoa, etc?

How in depth are we expected to study with topics like radiometric dating? Are the fundamentals enough or do we need to know the specific types like radiocarbon, potassium-argon, uranium-lead, etc?

Reactor core

The Longest Time by Billy Joel

Blonded wrote:I broke 2 out of 3 Chinooks while transporting at my States comp.
I made very stupid mistakes though.

Aw that sucks, we've already broken 1 chinook and 2 rotors so it is really important that this last chinook gets to Colorado safely

My team is going to nationals, and we'll be flying there so I was wondering what's the best way to transport the helicopters to make sure they don't get damaged? Secure the helicopters to a box with a packaging supporter of your choice (preferably bubble wrap). Then package all of that into a carry...

My team is going to nationals, and we'll be flying there so I was wondering what's the best way to transport the helicopters to make sure they don't get damaged?

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How do you usually ID sphalerite? I feel like I've seen so many different versions of it that it's hard to differentiate

Bowling