Explanation:
they all are congruent figures
Answer:
17: Mitochondria and Chloroplasts
19: The cell membrane is a double-layered sheet called a lipid bilayer. It affects the content of the cell because it controls what goes in and out of the cell.
When a body is partly or completely immersed in water (or any other liquid), then:Loss in weight of body = Weight of water (liquid) displaced by the body = Buoyant force or upthrust exerted by water (any liquid) on the body. It was Archimedes who first observed that bodies lose their weight when immersed in water.
