A search method employed by two or more people overlapping separate line searches forming a grid.
Not to sure tho hope this helps
The answer is E because heart is circulatory and brain is part of your nervous system.
C. negative proteins inside the cell
The fossil record shows a sequence from simple bacteria to more complicated organisms through time, it is very reliable because it is physical evidence and by studying fossils, scientists can learn how much (or how little) organisms have changed as life developed on Earth.
