According to the biological definition of a species, which organisms listed below would belong to the same species?

a. animals that can breed and produce fertile offsprings
b. protists that are the same shape and have the same structures for movement
c. plants that have flowers with the same pollinators
d. mushrooms that are the same color and can grow on trees

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.