The cave painting on the image is representing the animals, or rather the environment that was seen by the artist/s of the painting in their surroundings. We can see that there are wild horses depicted on it, but also a rhino. The wild horses were probably a prey animal, while the rhino was a respected animal and feared one, thus they were avoiding it. The artist/s that painted it were the Cro-Magnons, early <em>Homo sapiens</em> in Europe, in what is now France. The reason why it was painted is probably because the artist wanted to depict the environment, but also maybe for teaching the youngsters about the animals from early age, so that they know which ones are to be hunted, and which ones to be avoided.
Answer:
Great chamber musicians communicate and react not just by playing the correct notes, but through eye contact, body motions, sniffs, winks and all sorts of non-verbal cues.
When chlorophyll is in the presence of acidic molecules (compounds that easily share their hydrogen atom), the magnesium is dislodged and replaced by hydrogen atoms. This simple structural change alters the colour of chlorophyll from light green to yellowish green. -hope this helps!
