Answer:
The movement of ions or molecules across a cell membrane into a region of higher concentration
Isnt it not desirable? you dont want friction to act when you push a box
Answer: C. Their camera
Toolmarks are the impressions left by an object or tool on it's contact surface. Toolmarks are searched and collected in a crime scene to relate a link with the tool which has created them. In crime scene investigation, toolmarks found in the scene of crime should be photographed by the analyst in close range, mid range and overview range shots in order to record it's original location, shape, size and number if multiple tool marks are present.
The correct answer is False!
