Answer:
For anyone who needs a real answer the answer is B:34
Explanation:
A)binomial nomenclature
b)the results from using a molecular clock
c)a taxon
d)a branch of phylogeny
Wild guess but i want to say C
Annelids are one of the organisms that has a systematized circulatory system and is closed.
The circulatory system serves to provide and deliver nutrients and oxygen throughout the organisms cells and tissues. The heart serves as the pumping organ and the cornerstone of the circulatory system.