A seal takes four dives, and you are measuring the oxygen consumption rate (ml/(g min) by flow-through respirometry. The flow rate through the chamber is kept constant at 20 liters/min. For all dives, the expired oxygen fraction you measured was 0.15. Here are the dive durations: first dive: 10 min
second dive: 12 min
third dive: 15 min
fourth dive: 20 min

During which dive did the seal consume oxygen at the highest rate?

a. second dive
b. fourth dive
c. third dive
d. first dive

explanation:

with the profits from the european sales, merchants purchased europe's manufactured  goods, including tools and weapons. then the merchants shipped those manufactured  goods, along with the  american  sugar and rum, to west africa where they were bartered for  slaves.

it continues in business

d. i assume the underlined word is "role." reformat if it isn't.

explanation:

role is closest to part because when replacing words, "playing a vital decision," "playing a vital activity," and "playing a vital dollar" don't make logical sense. the only meaningful choice is "playing a vital part."

this fits one of merriam-webster's definitions of role: "a function or part performed especially in a particular operation or process."

answer; correlational;