Scallops lived before the dinosaurs.
Explanation:
In this image of rock layers and fossil records, we can see fossils of two different organisms, one being a dinosaur (predatory by the looks of it) and the other being of scallops. The scallops are found only in one rock layer, and the same is the case with the dinosaur fossil.
This suggests that both the scallops and the dinosaurs lived only during those periods, not before them and not after them. Since the scallops are found at the bottom rock layer, and the dinosaurs in the rock layer above them, with both rock layers being undisturbed, it means that the scallops lived before the dinosaurs. It also means that the scallops didn't existed alongside the dinosaurs, but instead the dinosaurs occurred when the scallops were already extinct.
Answer:
The amount of matter within the system remains the same.
The cycle has a well-defined starting and stopping point.
Explanation:
A closed system can be defined as a system in which there is the only exchange of energy with the surrounding, while no exchange of matter takes place.
In a closed system, the cycle has a well-defined starting and stopping point.
Therefore, the two generalizations which can be made for cycles of matter in a closed system are option 3 and 5)
Mexico occupied the southwest lands, and Britain shared the northwest Oregon Territory with the United States. Many Americans believed that the United States was destined to stretch across the continent from the Atlantic Ocean to the Pacific Ocean.
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The answer is panic disorder. This is a nervousness issue portrayed by reoccurring unexpected fits of anxiety. These attacks are sudden times of extreme dread that may incorporate palpitations, sweating, shaking, shortness of breath, deadness, or an inclination that something extremely terrible will happen.
Answer:
Tip-of-the-tongue effect.
Explanation:
The failure to retrieve a word from memory, combined with partial recall and the feeling that retrieval is imminent is known by psychologists as the "tip-of-the-tongue effect." The tip-of-the-tongue effect is the feeling you have when you can't just quite put your finger on it, a more common saying; "It's on the tip of my tongue." It's when you cannot remember a word, but you know more about the words background to know that if you think hard enough the word will pop in your mind.
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