A. They trap some of the Sun’s heat energy within the atmosphere, helping to maintain Earth’s average temperature.
Answer:
Explanation:
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Bonds issued by the U.S. treasury are back by the federal reserve and claim to have no credit risk. Agency bonds also usually have low credit risk. otherwise you just have to look at the bond before you invest and find out what dink of credit risks are involved.
Proteins are made up of a series of amino acids. Nucleic Acids (RNA and DNA) are made up of a series of nucleotides.
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Answer:
The correct answer is A from an area of higher concentration to an area of lower concentration
Explanation:
Diffusion is one of the most important membrane transport process which helps in the transport of small molecules and gases across the plasma membrane from higher concentration region to the region of low concentration until the concentration of the transported molecule becomes equal at both sides.
As the molecule move along the concentration gradient no external energy is needed to carry out simple diffusion.
