Most of the exchange surfaces of multicellular animals are lined with
A) adipose tissue.
B) connective tissue.
C) smooth muscle cells.
D) epithelial tissue.
E) neural tissue.
Answer: D
Most of the exchange surfaces of multicellular animals are lined with
A) adipose tissue.
B) connective tissue.
C) smooth muscle cells.
D) epithelial tissue.
E) neural tissue.
Answer: D