Answer:
Fossils are the preserved remains or traces of animals, plants, and other organisms from the past. Fossils range in age from 10,000 to 3.48 billion years old. The observation that certain fossils were associated with certain rock strata led 19th century geologists to recognize a geological timescale.
Explanation:
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Answer:
Some of their energy is stored in newly made structures.
Explanation:
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It's called hypoxemia, it's low levels of oxygen in the blood, to be more specific, it's oxygen loss in your blood from your arteries. It can cause respiratory disorders, and tissue hypoxia, as a result of the blood not providing much oxygen to your body.
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Answer:
The entire body.
Explanation:
The entire body would be effected, because without a digestive system you would have no ability to get the nutrients and sugars in food, and you would die.
Answer:
Option C
To repeat what you want to remember over and over
Explanation:
A memorization technique based on repetition.
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