(Q).
Q: Amino acid units in a protein are connected by what bonds? Choices: - acidic - covalent - ionic - peptide A:
(A).
peptide

(Q).
Q: Roundworms feed on various things, one of them being decaying organic matter. doing this, they play an important role in what famous cycle? Choices: - life cycle - soul cycle - water cycle - carbon cycle A:
(A).
carbon cycle

(Q).
Q: What term is used to describe the change in size or volume of a given mass with temperature? Choices: - freezing - thermal contraction - atmospheric expansion - thermal expansion A:
(A).
thermal expansion