Answer: dorsolateral prefrontal cortex and anterior cingulate cortex.
Fluid intelligence is the ability to reason and solve novel problems, recognize patterns, the capacity for abstract reasoning, independent of any knowledge from the previous experiences. It's thought that involves the dorsolateral prefrontal cortex and anterior cingulate cortex.
Your bones and muscles work together to support and move your body. Your respiratory system takes in oxygen from the air and gets rid of carbon dioxide.
Lipids are good for making the cell membrane because they are stronger and block out things that should not be getting in out, for instance lipids mainly only let water and gases pass through.