13. Select the best statement that represents the color change for BTB 2 points BTB changed from green to yellow in the presence of carbon dioxide
BTB changed from blue to green in the presence of oxygen
+
BTB changed from yellow to green in the presence of carbon dioxide
all of the above
none of the above

many phylogenetic trees have a single lineage at the base representing a common ancestor. a lineage that evolved early from the root and remains unbranched is called basal taxon. when two lineages stem from the same branch point, they are called sister taxa.

can i get the brainliest pls

explanation:

the answer is c. it will give up it's valence electron to the other atom.