An example of force that acts at distance is gravity and an example of contact force is pushing a chair across the room
Bacteria have been the very first organisms to live on earth in the waters of the first oceans. At first, there were only anaerobic heterotrophic bacteria.
Answer:
carbon-to-carbon double bond
Cells in the pancreas release insulin into the blood
Answer:
there's chemical receptors on antennas enable bees to receive the flower's smells (scents)
