Proteins are biological polymers constructed from amino acids joined together to form peptides. These peptide subunits may bond with other peptides to form more complex structures. Multiple types of chemical bonds hold proteins together and bind them to other molecules. Take a closer look at the chemical bonds responsible for protein structure.
Answer:
Vascular tissue is responsible for transporting water, mineral and sugar to differnt parts of the plant
Explanation:
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The best representation is "C. A cactus is moved from a sunny windowsill to a dark room..", because the cactus feed itself with photosyntesis.
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According to the Doppler effect, the sound of a police car siren is louder and high pitched as it approaches the observer.