Which of the following cell types are dead at maturity?
A) spongy mesophyll
B) root hairs
C) palisade mesophyll
D) xylem
E) phloem
Answer: D) xylem
Which of the following cell types are dead at maturity?
A) spongy mesophyll
B) root hairs
C) palisade mesophyll
D) xylem
E) phloem
Answer: D) xylem