Which simple machine can be described as a rope that is threaded through a wheel or disk?
The correct answer is B - Pulley
A pulley is a simple machine that is used to lift loads. It consists of a wheel on which a rope is placed and the rope is pulled by the person towards himself to lift the load that is tied on the other side of the rope. There are three main types of pulleys: fixed, movable, and compound.
Answer:
rabies is just a virus which spread to people from the saliva ofanimals which are infected by that. basiclly viruses are not living things. Viruses are complicated assemblies of molecules, including proteins, nucleic acids, lipids, and carbohydrates, but by theirselves they can do nothing until they enter a living cell.
Explanation:
A. Tissues. I believe tissues then combine into organs.
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The major carbohydrates are cellulose, hemicellulose and pectin.
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