It is possible that he consumed here the last of his food store: a piece of tough dried ibex meat. Two bone splinters had inadvertently been left in the strip of meat as he cut it off: these he chewed off and spat out. –The Man in the Ice, Konrad Spindler

Why is the passage a secondary source?

The author provides an interpretation of the event.

I hope this helps

b) a state law could be declared illegal if it contradicted the constitution.

explanation:

the conflict of this case originated when james w. mcculloch, a cashier of the baltimore branch of the second bank of the united states that the congress had chartered in 1816, refused to pay a tax imposed by the maryland state.

in the case, the state of maryland appealed that the establishment of a second bank was unconstitutional since the constitution didn't say anything about granting that power to congress. however, the case determined that even if such right wasn't specifically stated in the constitution, it was part of the "implied powers" of the government enunciated in article i, section 8.

the case also eliminated maryland's legislation to impose taxes to a national bank, asserting that even though the states retained the power of taxation, the constitution's laws are supreme and can not be controlled by the states, therefore, if a state law contradicts the constitution, it should be declared illegal.

explanation:

it refers to race, i am pretty sure this was a popular term in nazi germany or something.