The correct answer is; D
Homologous structures is the term used to describe physical similarities between related species that indicates a common ancestry.
Homologous structures are structures that have the same form or functions in different animals, indicating that the animals have evolved from a common ancestor. Homologous structures usually appear very similar in form but it may or may not have the same function in the different animals that are suggested to be related. The bones in the front limbs of many different mammals (such as humans, deer and bats) which are similar in their structure and arrangement are homologous structures.
Plasmids, they are mostly found in bacterial cells and they r the cause of antibiotic resistance in bacteries :)
C. Are vascular is the answer
The SI system or metric system is the most commonly used system of measurement around and hence makes it more applicable around the world than the english SOM
