<u>Answer:</u>
<em>Scientists are constantly learning more about fossils to understand the evolution of earth and other living species.</em>
<u>Explanation:</u>
It helps to study the structure of the organisms that are already extinct. Fossils are the conserved remains or traces of animals, plants, and other organisms that exist no more.
Fossils are the significant proof for evolution as it demonstrate that organism on earth was unique from the organism found on earth today. It is also used to study the tectonic history.
If water were flowing from area A to area B via osmosis, through a semipermeable membrane, we might expect are B to be high in solute concentration compared to A. Osmosis is the process by which water moves from a region of a high concentration to a region of low concentration through a semipermeable membrane. It means area A is hypotonic (more water molecules than solute molecules) while area B is hypertonic (more solute molecules than water molecules).
Answer:
Phototropism is one of the many plant tropisms or movements which respond to external stimuli. Growth towards a light source is called positive phototropism, while growth away from light is called negative phototropism (skototropism).
Explanation: