Answer;
C. Their degree of relatedness can be estimated from their genes.
Step-by-step explanation;
- Different organisms may differ or have a similar evolutionary relationship. Scientists gather information which allows them to make evolutionary relationship between organisms.
- Phylogenetic inference is the process by which evolutionary relationship between organisms is studied. It involves the use of phylogenetic trees which are used to illustrate the genetic relationships of organisms. Genes are studied to estimate the relationship or relatedness between organisms.