Cytokinins are primarily involved in: MCQ with Answer and Explanation

Explanation:
Secretin was the first hormone ever to be identified, marking the birth of endocrinology as a distinct field. It was discovered in 1902 by British physiologists William Bayliss and Ernest Starling. They observed that when acidic chyme entered the duodenum, it stimulated the pancreas to secrete bicarbonate-rich juice, even if all nerves to the pancreas were cut. They concluded that a chemical messenger (which Starling coined the term 'hormone' for in 1905) was released from the intestinal mucosa into the blood to stimulate the pancreas. They named this messenger secretin.

Explanation:
Fungi are eukaryotic, heterotrophic (saprophytic or parasitic), with cell walls containing chitin and glucans, not cellulose. They lack chloroplasts and are non-photosynthetic. Examples: yeasts, molds, mushrooms. They store food as glycogen. Reproduction can be asexual or sexual. Fungi play a key role as decomposers in ecosystems and are used in antibiotics production.

Explanation:
The hypothalamus is a small, highly complex region located at the base of the brain, near the pituitary gland. It is the primary link between the nervous and endocrine systems. It controls the pituitary gland (the 'master gland') both neurally (via the posterior pituitary, where it stores and releases ADH and oxytocin) and hormonally (via the anterior pituitary, by secreting releasing and inhibiting hormones that regulate the production of anterior pituitary hormones). Through the pituitary, the hypothalamus regulates a vast array of bodily functions.