B. 245 million
from the end of Carboniferous Period to the beginning of the Triassic period
Answer:
stethoscope is the instrument used to measure heart beat
Answer:
A. The number of genes on its chromosomes
Explanation:
The reason why genes are so important is because genes can be transcribed to make mRNAs, and mRNAs can then be translated to make proteins. Proteins are an integral part of life, since they regulate so many processes and functions. Therefore, the number of genes (or lack thereof) in an organism defines how the organism is going to function.
Answer:
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False Routine maintenance costs on a hybrid may be lower than on a regular car.
