Stress itself is caused when we have to deal with something we don't feel we are physically or emotionally able to handle and an example of a stressor could be a big test, or moving to a new city.
How this comes into play is when we have to deal with one of these stressors, we go through a stress response commonly known as fight or flight. You act differently depending on the stressor, but you analyize the situation and then your body and mind decide if you can stay and deal with the threat or if you should leave to avoid it. If your body decides you should choose the fight method you get a big burst of energy to fight the potential threat, if flight is chosen you will try to find the easiest and safest mode of escape.
Keep in mind that this is a very primal thing and is triggered by tons of stuff, but most of the time it is a false alarm; an example could be the test anxiety some people feel which is not an actual physical threat, but sometimes yur mind will treat it as one.
Answer:
b. Morgan—molecular genetics
Explanation:
Thomas Hunt Morgan's research led him to formulate the chromosomal theory of heredity rather than molecular genetics and earned him the Nobel Prize in Medicine in 1933.
In Columbia, Morgan began studying heredity with a team of students, experimenting with Drosophila ampelophila and Drosophila melanogaster, which proved Mendel's theories and allowed us to determine the principles of genetics.
Morgan proved the reality of genes as corporeal elements of specific location on chromosomes. He described the gene system in Mechanism of mendelian heredity, published by his team in 1915.
Morgan's subsequent discoveries concern mutation and hereditary functions of chromosomes.
The six skill related components of fitness: agility, balance, coordination, power, reaction time, and speed.