Answer:
Plant cells have a cell wall, chloroplasts and other specialized plastids, and a large central vacuole, whereas animal cells do not.
True if one species goes extint then we could lose food from them
The correct answer is iron, because it is often not included in children's multivitamin/mineral supplements. Iron is an important element for our health. It is especially important for the proper functioning of our red blood cells and it is found in many foods. Although iron is essential, too much can lead to iron toxicity. Iron poisoning was the leading cause of death from the medicine overdose in children younger than 6 years until the ends of the 1990s. But the trend has since changed due to better warning labels, education of prescribers, changes in iron preparations, and consumer awareness.
Proteins are the main structural and functional components of cells.
Each group of three bases in mRNA constitutes a codon, and each codon specifies a particular amino acid. The mRNA sequence is thus used as a template to assemble in order the chain of amino acids that form a protein.
The sequence of a protein is determined by the DNA of the gene that encodes the protein change in the gene's DNA sequence may lead to a change in the amino acid sequence of the protein. The sequence of amino acids of a protein determines protein shape, since the chemical properties of each amino acid are forces that give rise to intermolecular interactions to begin to create secondary structures, such as α-helices and β-strands.
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