Name of the light-sensitive vitamin that is abundant in milk?

The light sensitive vitamin that is abundant in milk is Riboflavin and Vitamin A. too much exposure to light will decrease the vitamin content in milk. Milk should be store in containers that provide barriers to light to maximize vitamin retention. 

they each offer a fresh glut of resources to the organisms that can arrive and exploit them. as individuals and new species continue to appear, they actively and passively alter the environment. competition for shared resources increases, local abiotic and biotic conditions shift, and the relative abundances of species change accordingly. the process is called ecological succession, and it is one of the earliest and most well-known concepts in ecology.

they both go up but then go back down. they both end lower than they started. lastly, they both are competitive/the second on.

explanation: