Which of the following additions to the experiment design will best help test whether the observed habitat preferences were the results of competition between species

Which identifies the main purpose of biological taxonomy?

Which statement describes compounds a. compounds are made of one type of atom. b. compounds cannot be represented by models. c. compounds are represented by chemical formulas. d. compounds cannot be broken down into simpler forms.

Dna and rna share a number of similarities,but they also differ in certain aspects of their structure. wich nitrogenous base is found in rna but is not found in dna