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]: Biennials require portions of ____ growing seasons to reproduce.
[EX A]: two

[EX Q]: Lancelets display all ____ of the vertebrate characteristics throughout their lives.
[EX A]: four

[EX Q]: Collards fall into ____ groups.
[EX A]:
two