Hi there! I can help you with this!
1. Cenozoic - humans
2. Mesozoic - dinosaurs
3. Paleozoic - fishes & reptiles
4. Precambrian - unicellular organisms
The lateral end of the clavicle articulates with the acromion process of the scapula forming the acromioclavicular joint.
The first one is the answer i think dont quote me <span />
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one is sugar backbone I think I wish you luck
Answer:
No, or at least not yet. there small and dont do much improvment. If they were much bigger and sucked better, including some touch-ups here and there, they would have a bigger effect on removing sea urchins.
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