After Charles Darwin began suffering from panic disorder, he lived in relative seclusion and traveled only in his wife's company. His panic disorder was apparently accompanied by a. catatonia. b. agoraphobia. c. delusions. d. mania. e. hallucinations

Eating right and exercising daily

Bmust be the answer, as technically all organs move, so a is incorrect. all organs are made of different types of cells, so that isn’t a problem, so c is also incorrect. human hearts are very similar to many other animals’ hearts, so d is also incorrect, yet the heart is made of muscle, which is hard to grow in the lab so it would be correct to say b