ANSWER:B.Xylem
SOLUTION :The hard part of a stem of a plant is because of Xylem. Stem supports leaves, flowers and fruits. It also transports fluids between the roots and the shoots in the xylem and phloem, stores nutrients, and produces new living tissue.

ANSWER:C.Stem
SOLUTION:Stem refers to one of the two main structural axes of a vascular plant.

ANSWER : C.Suberin
SOLUTION:Cell wall in cork is impervious to water and gases due to the presence of suberin. Suberin is a waterproof waxy material found in higher plants. Suberin is the main constituent of corks.

ANSWER: A.Meristematic tissue
SOLUTION: Meristematic tissues have the ability to grow rapidly through division. They contribute significantly to the plant’s growth, both in length and diameter. Meristematic cells are cubic, living cells with a large nucleus. These cells are closely packed with no intercellular spaces.

ANSWER:C.Meristematic tisssue
SOLUTION:Meristem is the region marked by the presence of active cell growth and the tissues present in meristem are termed as meristematic tissues. On the basis of their position in the plant body, meristems are grouped as apical, lateral or intercalary meristem.

ANSWER: B.Tissues
SOLUTION: Tissue: A tissue is a group of cells. These cells have similar structures and perform a specific function. Tissues grouped together form organs, which further form organ systems.

ANSWER:D.Epidermis
SOLUTION : epidermis, in botany, outermost, protoderm-derived layer of cells covering the stem, root, leaf, flower, fruit, and seed parts of a plant. The epidermis and its waxy cuticle provide a protective barrier against mechanical injury, water loss, and infection.

ANSWER: A.Stomata
SOLUTION:The tiny pores present on the surface of leaves are known as stomata.

ANSWER:C.Meristematic tissue
SOLUTION: The meristematic tissue is a dividing tissue.

ANSWER: A.Cytoplasm
SOLUTION: The cells of meristematic tissue have dense cytoplasm, thin walls and prominent nuclei.