12. in our somatic (body) cells, we have chromosomes, but in our sex cells (sperm & eggs), we have half the number of chromosomes, which is chromosomes

How does the molecular clock work? a. it analyzes the brain functionality of two different species. b. it examines and compares the physical characteristics of two different species. c. it illustrates relationships between two different species. d. it compares the number of mutations that exist in the dna of two different species.

Which blood cell spend most of their time in the lymphatic system?

What noticeable trend from this graph might be used to make a conclusion?