Generate a sentence that answers this question: "An acquired characteristic is".

Answer: an organism 's environment affects that organism 's acquired characteristics

Generate a sentence that answers this question: "Some birds have adapted to their cold environment by over time evolving to have thicker feathers in order to".

Answer: thick feathers can be used for keeping warm

Generate a sentence that answers this question: "A stopwatch is helpful".

Answer:
a stopwatch is used to measure time