I need full marks for this question

15 degrees

Step-by-step explanation:

ALL of the angles in the 12 sided polygon will be equal to 150 degrees. You already have Q which is 150 degrees. If you do know that angles in a triangle add up to 180 degrees then you should subtract the angle Q (150 degrees) from 180 and you should get 30 degrees left. This is the total angle of angles P and R. As it is a regular shape, the angles should be equal to each other. This means that both of them would be equal to 15 degrees.

This means angle PRQ is 15 degrees.

the population of other specie of birds will decline or other specie of birds will find some alternate source of food to survive.

explanation:

according to the competitive exclusion principle, which is also known as gause's law, two specie living in the same niche and feeding on the same resource cannot co-exist stably.

as we have well studied the theory of natural selection which states that only those organisms survive which have better tendency to compete for food and adapt to the environmental conditions.

coming towards the question, what wi ll happen when one species outcompetes the other for the small fish , the other specie will not get enough food and will start to die or decline in population. eventually either other specie needs to find another alternative food source for itself or migrate at some other location where there is less competition otherwise it will just not exist anymore at that niche.

hope it !

3

step-by-step explanation: