Answer: The answer is E: 'Sweetgum, a tree species with wind dispersed seeds'.
The other options mention species that occupy niche environments and would therefore definitely not be randomly dispersed. Rushes and frogs would be found along the edges of water bodies, squirrels would be found within appropriate environments, which would be acorn tree forests and orchid plants also occupy a particular tree
Explanation:
3. cell wall
The cell wall is a rigid supporting structure.
The adult human brain weighs about 3 pounds (1,300-1,400 g)
