water that travels across land may pick up substance and become contaminates.
Because it is direct contact of the molecules in the air and the land that are touching.
Answer:
B-the ability to reproduce
Explanation:
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These threadlike structures that form muscle fibers are called myofibrils.
They are very long fibers organized into myofilaments, that layer on top of each other to create myofibrils, which then layer in order to create muscle fibers, which then layer to create muscles, which they cover our entire body and make up the muscular system of organisms.
Have mammary glands - GradPoint answer (you can do this)