Its the epidermis because it is subdivided into two layers.
Answer:
Homeostasis is the state of steady internal, physical, and chemical conditions maintained by living systems
Explanation:
(A property of cells, tissues, and organisms that allows the maintenance and regulation of the stability and constancy needed to function properly)
Xylem transports and stores water and water-soluble nutrients.
Phloem transports sugars, proteins, and other organic molecules.
Endocrine. Because insulin is a hormone that are produced in the endocrine gland such as pancreatic gland