The correct answer is - a front.
On this image, the lines are representing a front, and since the signs are marked with blue color, it means that it is a cold front. The fronts are advancing masses of air. In this case, we have a cold front, thus we have advancing cold air masses in the western part of the US, and in the Great Lakes region and the northeastern part of the country. This means that these areas will be affected by colder air masses, that will bring in higher air pressure, colder weather, and cold winds from the direction from which these cold fronts are coming.
In the first image, those are fake ribs that are attached to the sternum through the costal cartilage
in the second image are real ribs since they are directly attached to the sternum
Prey or predation is a biological interaction where a predator (an organism, often an animal) kills and eats its prey (another organism).
Like a mouse getting caught and eaten by a bird of prey (Eagles, hawks, etc.)
If they are both albino there is no chance for them to have any other skin color because it is not in their genes. The phenotype gene is always going to be albino.