Answer:
There are four major classes of biological macromolecules.1.)carbohydrates 2.)lipids 3.)proteins 4.)nuclic acids .each is an important cell component a performs a wide array of functions.
Based on the passage, which best describes President Monroe's point of view about relations among the countries of
Answer:
A Space Ship. Firstly, whether it's a suit that fits around your body or a larger vehicle that gives you some freedom of movement, you need a space ship if you're going into space.
Food and Water. Every astronaut needs a personal supply of water
Hygiene and Health Supplies.
Music and Relaxation.
Explanation:
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Crystallization
This is a technique commonly done by chemists to purify compounds. During crystallization, an impure,solid compound is dissolved with a hot solvent. In the container the impurities and the needed compound move freely. When the solution cools down, the solvent can cannot hold all the solutes. Each solute will form a crystal. Therefore each crystal is made of only one molecule. Once it cools down if will be placed in a cold bath to complete the crystallization.
Answer:
The correct option is A.
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