D 1. What is the biggest problem associated with the introduction of the invasive species, Zebra Mussels, in the Great Lakes? They increase the purity of the lake water, They produce fatter and faster growing salmon. They consume small amounts of algae. They clog up factory intake pipes.​

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.

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