Marshall made the following table to compare the functions of physical structures in plants and animals:
Function
Provides support for the organism
Reproductive organs
X
Animal Structure Plant Structure
Skeleton
Exoskeleton
Testes
Ovaries
Skin
Fur
Feathers
Which of the following should replace X?
O Protect the internal organs of the organism
O Protect the organism from harsh conditions
O Transports water throughout the organism
O Involved in reproduction of the organism
Stem
Stamen
Pistil
Waxy Covering
Bark
