In the context of sentence 7, the words "one is retired" are best described asAa detail that makes a critical situation even more precariousBa fact that is puzzling to the author and other biologistsCa claim that is of equal concern to scientists and the general publicDan excuse for outdated designs for research projectsEan aside that undermines the point about taxonomy that is being made

sight: watching a movie

touch: petting a dog

smell: smelling dinner

hearing: listening to music

taste: eating pizza

the illustration   that would give a reader a clear understanding of the text is a picture of men constructing the frame of a building.the frame is made of iron bars. the text describes the job of blacksmiths'. these were very organised and they had different names: "the driver" and "the heater". the text describes the way in which these men worked ; they worked iron pieces as if they were playing a sport. in fact, the text wants to show the men's skills. the text also puts some emphasis on the use of '' rivets'' in construction. this kind of nails were not always used in the construction of manhattan.

some examples:

"and with an underhand toss he hurled the smoking rivet straight at the catcher, who caught it in mid-air in his catching can." men's skills

"when the driver was ready for a new " the emphasis on the rivet ( special nail used in construction).

" it against a beam to remove any cinders, and jammed it into the waiting hole. " the emphasis on the rivet.

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