The volcano is a cinder-cone volcano. It is formed after it's eruptions. When eruptions occur, the material that flies high up into the air (which happens because it is an aggressive and a hasty volcano) falls down around the vent from where it came and after layering a cone is formed, making a cinder cone volcano.
Osmosis is the short answer
what is happening is that the salad dressing has a lot of salts and little water and the lettuce leaves have all the water so when the letters has salad dressing on it the water is drawn out of the lettuce leaves and ended up in the bottom of the bowl
I will answer the question accordingly so that it help you under stand it better.
Question A.
During an extreme heat wave, plants with white flowers survive better.
What mechanism is in work here?
Answer: Mechanism of Natural Selection
will work here. This is called survival of the fittest which means the best color which fits in harsh conditions will dominate over others and will survive for longer time.
What is the effect on the gene pool?
Answer: The Frequency of white allele will increases
because white color is the best fit to extreme heat wave.
Question B.
A person uproots the five closest plants, which all happen to have white flowers.
What mechanism is in work here?
Answer: The mechanism of gene flow will work here as color of flower represents genotype of flower.
What is the effect on the gene pool?
Answer: The Frequency of white allele will increases because genotype of white flowers is increased.