Which term best describes the "Cell" organizational level? a. biggest b. smallest c. largest d. tallest

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.

9. the history of life on earth is recorded in

What substance is the most acidic. lemon juice. tomato juice. sodium hydroxide. water