As the human population grows and countries continue to develop, the demand for large fish has been steadily increasing. Unfortu
nately, the average size of the cod has decreased because the fishing nets were designed to catch the large fish and the smaller individuals could escape more easily. What is most likely happening to the genetic variation of the population of North East Arctic Cod? a. The genetic variation in the population is increasing due to selective pressure. b. The genetic variation in the population is decreasing due to selective pressure. c. The genetic variation in the population is increasing due to gene flow. d. The genetic variation in the population is decreasing due to gene flow.
The example given in the question is an example of gene flow which can be described as the movement of specific genes from the the gene pool population to population.
The act of catching the bigger fish and letting the smaller ones escape is changing the gene pool of the North East Arctic Cod and causing the next generations to have smaller and smaller sizes which is given as the genetic variation decrease due to gene flow.
Displacement is a vector, meaning that the direction is very important. Displacement is the distance from the starting point to wherever the object is. So a car that does a 500 m lap will have covered 500 m in distance but displacement is zero because, having come back to the starting point, the distance between the starting point and where the object is, is zero.
Predator Because they are at the top they eat everything so when the arrows point towards them on the web it means they are essentially eating them because like a food web this organism is on top and the other prey are on the bottom
Explanation: Runoff from cars and other pollutants usually flow off of roads into rivers or streams that usually lead into bigger bodies of water such as oceans.
New neurons are born not from mature nerve cells but rather develop from neural stem cells that remain in our brains throughout life. Indeed, in some brain areas, there is continual turnover of neurons - old ones die and new ones are born - and these new neurons can participate in circuits that underlie learning.
