Density refers to a physical property that is measured using a ratio of divided by so that two objects of the same size can still have very different density. weight; height mass; volume height; width concentration; mass

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.

Apaleontologist finds a plant fossil that shows that the plant had seeds. what can the paleontologist conclude?

What happens during interphase? (1)the nucleus grows to its full size. (2)the cell grows to its full size. (3)the nucleus divides into two nuclei. (4)the cell divides into two cells.