Given scientific fact as input, generate the question from this fact such that it can be answered from the input.

During the first year after birth, a baby called a(n) infant.
During the first year after birth, what is a baby called?

Proteins are long chains of amino acids.
What are long chains of amino acids?

Nonshivering thermogenesis, generating heat involves the breakdown of brown adipose tissue, is a special methods newborns have for what purpose.

Nonshivering thermogenesis, which involves the breakdown of brown adipose tissue, is a special methods newborns have for what purpose?