The main grass in a grassland in North America is prairie grass. The main grass in a South American grassland is pampas grass. Would you expect the ecological role of these grasses in these two locations to be the same or different? Explain your answer using at least one complete sentence.

The body is protected against harmful flu viruses by

18. which statement about cancer is true?

You have just sequenced a new protein found in mice and observe that sulfur-containing cysteine residues occur at regular intervals. what is the significance of this finding? it will be important to include cysteine in the diet of the mice. cysteine residues are required for the formation of α helices and β pleated sheets. cysteine residues are involved in disulfide bridges that form tertiary structure. cysteine causes bends, or angles, to occur in the tertiary structure of proteins.