The wrinkles signify that the brain is compressed which makes it take up less space in your head which makes it more eficent I guess.
Feeling pain, hunger, thirst, sleepiness, and being aware of our thoughts and emotions are all examples of Internal stimuli.
Answer:
Don't have sex. 5 points isnt a lot so I am not spending alot of time on it.
DNA stores the instructions (genetic information) used to build proteins.
