Answer :
Final answer:
The correct option is d) It depends on the specific key and criteria used. Dichotomous keys in biology are used to identify unknown organisms by narrowing down possibilities through a series of questions, with the number of questions needed being dependent on the specific key and criteria used.
Explanation:
The correct option is d) It depends on the specific key and criteria used. A dichotomous key is a tool used in biology to identify unknown organisms based on a series of questions with two mutually exclusive answers. When determining if an unknown is bacteroides using a dichotomous key, the number of questions needed would depend on the specific key and criteria used, making the correct answer option d) It depends on the specific key and criteria used. These keys are designed to narrow down possibilities by utilizing observable characteristics, aiding in the identification of various bacterial species.
