Answer:
Zebra mussels are spread from one body of water to another by natural flow, carried on the feathers or feet of birds, or by humans in bait buckets or on boats.
<span>The closer you are to the poles of the Earth, the fewer ecological niches for species to fill. </span>
Answer: 1 high blood pressure
2 headaches 3 nosebleeds 4shortness of breath
Explanation: