Which of the following statements most detracts from the claim that the human appendix is a completely vestigial organ?
A) The appendix can be surgically removed with no immediate ill effects.
B) The appendix might have been larger in fossil hominids.
C) The appendix has a substantial amount of defensive lymphatic tissue.
D) Individuals with a larger-than-average appendix leave fewer offspring than those with a below-average-sized appendix.
E) In a million years, the human species might completely lack an appendix.
Elephantiasis in a human leg.
Photograph of the flea that transmits Yersinia pestis to cause bubonic plague, called the oriental r
Baby Gorilla versus Baby Human
Trace Elements of the Human Body
Structure and function of human teeth.
Major bone (tan) and cartilage (light blue) elements of the human skeleton. Inset shows regions of v