Answer:
C.
Explanation:
I don't really know why. I just googled it and it said...
the number of times a machine multiplies the effort force: mechanical advantage
Hope this helps
Ribosomes and mitochondria
Answer:
C. could not provide a mechanism for moving continents
Explanation:
Without the discovery of magnetic reversals recorded on the ocean floor, scientists could not provide a mechanism for moving continents.
Magnetic reversals are responsible for geological shifts and depend on the distribution of tectonic plates that causes movements of continents.
Asymmetric movement of tectonic plates leads to movement of continents and the degree of asymmetry varies with the same rythm of the magnetic reversal rate.
Hence, discovery of magnetic reversals are important to identify the mechanism for moving continents.
The autonomic nervous system releases chemical messengers to influence its target organs
1.No 2.yes 3.yes 4.no 5.no