Answer:
gas moves more freely because it has loosely arranged molecules
Explanation:
A. Hormones
secreted directly into the blood
Transfer<span> ribonucleic acid (tRNA) is a type of </span>RNA<span> molecule that helps decode a </span>messenger RNA<span> (mRNA) sequence into a protein. tRNAs</span>function at specific sites in the ribosome during translation, which is a process that synthesizes a protein from an mRNA molecule. or check this site out it might help http://www.nature.com/scitable/definition/trna-transfer-rna-256
Lipids are made up of carbon, hydrogen, and oxygen. So I'm assuming A would be the best answer. Proteins are made up of carbon, hydrogen, oxygen, and nitrogen and nucleic acids are made up of carbon, hydrogen, oxygen, nitrogen, and phosphorus.
almost any living organisms like animals and humans. Im not so sure about plants though. happy studying! :)