Soil color is classified by a. using a microscopeb. taking core samplesc. determining the proportion of mineralsd. using a color reference chart 

Differences between compact bone and cartilage

What statements describe a host organism?

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.