The release of which hormone is stimulated by the suckling reflex during breastfeeding? MCQ with Answer and Explanation

Explanation:
The primary cell wall of plants consists of cellulose microfibrils embedded in a matrix of hemicellulose and pectin. Secondary walls may contain lignin.

Explanation:
Auxins produced at the apex suppress the growth of lateral buds, maintaining apical dominance. Gibberellins induce rapid stem elongation or bolting in rosette plants before flowering. Cytokinins actually delay or prevent senescence (aging) of leaves by promoting nutrient mobilization, known as the Richmond-Lang effect. Therefore, statements 1 and 2 are correct, while 3 is false.

Explanation:
Crystallization is a property of non-living substances where molecules arrange in a definite pattern, e.g., salt crystals. Living organisms exhibit growth, reproduction, metabolism, cellular organization, and consciousness. Metabolism is a defining feature of all living organisms, occurring even in unicellular forms. Reproduction, though absent in sterile organisms like mules, is generally a characteristic. Growth in living beings is internal and intrinsic, unlike extrinsic accumulation in non-living things. Hence, crystallization is not a characteristic of life.