Question: The Produces secondary phloem and xylem tissue, adding to a tree's girth. Answer: The "vascular cambium" produces secondary phloem and xylem tissue, adding to a tree's girth.
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Answer:
i think iam not sure it is C
The cells of the immune system
Answer:
I think the answer is Cellular Probes.
Explanation:
I hope this helps! Correct me if I am wrong.