Answer:
carbon
Explanation:
carbon molecules lack amino acids
The fossil record essentially keeps track of the abundance and appearance of various fossils during different time periods. As time goes on, the fossils change. Using the fossil record, we can compare and contrast the fossils to develop theories about changing life forms and their connection to time.
Hope this helped :)
Answer:
Two elements
Explanation:
Nitrogen and Oxygen only, (NO)
The animal that can hear 67,000 hertz is a dog !!
