Which of the following is not true concerning the zebra mussel in the united states?
a. it was introduced accidentally.
b. it was first introduced in the great lakes.
c. it is still spreading throughout the united states.
d. it can be eliminated from a river with minimal effort.

The correct answer is (d) it can eliminated from a river with minimal effort.

Zebra mussels are small mussels that live in freshwater. They are native to lakes of southern Russia and Ukraine. Accidentally, they were introduced into many other countries worldwide. They were first introduced in the great lakes. Then it started spreading throughout the united sates.They become problems  because they were not removed easily from the lakes. They started filtering water and eating the plankton. As they eat a lot of plankton, this started a competition between the zebra mussel and fishes of lake. They also clog pipes and as a result of this water cannot flow through the pipes.

answer: accepted answer: aquatic animals use the oxygen dissolved in water to carry out respiration. since the amount of dissolved oxygen in water is low as compared to the amount of oxygen in the air, therefore the rate of breathing in aquatic animals is much faster than it is in terrestrial animals.

explanation:

common management practices in dairy and poultry farming are: (i) proper shelter facilities and their regular cleaning. (ii) some basic hygienic conditions such as clean water, nutritious food, etc. (iii) animals are kept in spacious, airy, and ventilated place.