Which food chain would cease to exist if all the bushes were destroyed? a. deer - coyote b. mice -snake -hawk c. grasshopper -frog- hawk d. none of the food chains would be affected.

C. grasshopper - frog - hawk

Explanation:

In the image network of food, chains are in operation.  In the given ecosystem, different types of producers are present. The producers are eaten  by herbivores or primary consumer. If all the bushes were destroyed, then the food chain consisting of grasshopper -frog- hawk will cease because grasshopper only eats bushes. Other herbivores such as rabbit, deer can eat other producers such as trees, carrot beside bushes. Therefore, food chains consisting of deer-coyote and mice - snake - hawk will survive.    

try using substitution:

x + y - 6 = x - y. (i'm not giving you the exact answer). since 0 = x - y, then sub 0 in the equation with x - y. combine your like terms, and then use inverse operations, and you'll have your answer.

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