This chart shows the compounds that make up the air. The rectangle on the right is an expanded view of the smallest, black wedge of the pie chart. What percentage of air is oxygen?
0.07%
0.93%
21%
78%

Me with these questions if you’re it sure don’t answer

The distant ancestors of tigers may have had bodies without stripes. use the theory of natural selection to explain how tigers may have evolved to have stripes.

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.