In the picture to the right iron filings have been sprinkled around a bar magnet. The iron filings outline the magnetic field lines, making it visible. Magnetic fields all have a pair of "poles", from which "lines of force" or magnetic field lines appear to originate.
The duties that Alan performed was farming work and cooking meals.
Hisashige Tanaka's robots could be able to serve tea, A.
<span>Prior to the standard gauge track, railroad travel was much more arduous and painstaking. There were originally several types of gauges used on a railway track. This caused long train trips to require multiple stops in order to change train cars. With the standard gauge track on trains in the 1800s, multiple changes were no longer necessary and so the trips were shorter.</span>
Answer:
d. Prisoners
Explanation:
The Health and Human Services department of the United States is the first federal agency to make regulations regarding human research protection. It meets regulatory as well as institutional requirements.
According to the HHS regulations, 45 CFR part 46, includes four subparts --
Subpart A -- is know as the Common Rule or the Federal Policy.
Subpart B -- provides protection for pregnant women, neonates and fetuses.
Subpart C -- provides additional protection for the vulnerable prisoners.
Subpart D -- provides protection for the children.
Hence the correct option is (d).
