50. what do researchers believe about the
hypothalamus?
f. it prevents mild depression.
g. it manages emotions.
h. it regulates the temperature of blood.
j. it causes negative emotions, such as fear,
rather than positive emotions.
k. it regulates the flow of blood to the brain.

Nucleic acid certain protein cell membranes certain carbohydrates

Ronald wants to see if a new shower cleaner works better in removing soap than his old cleaner. he uses the new cleaner on one half of the shower tiles and his old cleaner on the other half. identify the independent and dependent variables in this experiment. enter your answer in the space provided.

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.