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