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.
Diffusion allows the exchange of substances; the entry of oxygen, proteins, etc into the cell and the removal of waste substances.
An astronomical unit (AU) is the approximate distance from the earth to the sun. The answer is D.
Soil in cooler climates would most likely be well developed and have Lots of organic matter .
Hope it helps !! :)
1. Topographic map: I want to take a nature hike through the woods. I wonder if it is hillly?
2. Geologic Map: I want to study the physical features of my area, but also know what kinds of rocks it has.
Those should be the answers.
Hope this helped :) Have a great day
