Given a sentence, fill out the missing word with a 'no' or a number (between zero and ten). You should write the numbers with english alphabet, like: four instead of 4.

[EX Q]: Death occurs after ingestion of ____ grams of quinine.
[EX A]: eight

[EX Q]: Cytochrome oxidase consists of two cytochromes and ____ copper atoms.
[EX A]: two

[EX Q]: All insects have ____ body regions, the head, thorax, and abdomen.
[EX A]:
three