How is observation used by scientists? O A. To prevent the use of peer review
O B. To make experiments unnecessary
O C. To make experiments less repeatable
O D. To learn new information about the world

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 of these is most likely to happen if parallax measurements of star distances are taken after a gap of six months? the results would be accurate the results would be inconsistent the results would not be valid the results would not be repeated

Someone me with this: a mineral' is determined by its actomic structure.