Calculate the percent covalent character of a chemical bond between bromine and potassium.
37 percent
67 percent
63 percent
33 percent
calculate the percent ionic character of a chemical bond between magnesium and nitrogen.
49 percent
47 percent
55 percent
51 percent
63 percent
33 percent

the population of unionid mussels in the hudson river decreased after zebra mussels were introduced. zebra mussels, a nonnative species, competed with the unionid mussels for food. the zebra mussels were able to outcompete the unionid mussels, allowing the zebra mussel population to increase dramatically over six years. the unionid mussel population decreased due to a lack of food.

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