Explanation:
Egestion (defecation) is the removal of undigested solid waste from the digestive tract. Absorption is uptake of nutrients, assimilation is incorporation into cells, digestion is breakdown of food.
Explanation:
A mid-cycle surge in luteinizing hormone (LH) triggers the final maturation and release of the secondary oocyte from the Graafian follicle (ovulation). FSH stimulates follicle growth, estrogen proliferates uterine lining, progesterone maintains it.
Explanation:
Abscisic acid (ABA) is a stress hormone that induces stomatal closure by causing efflux of K⁺ ions from guard cells, leading to loss of turgor, thereby reducing water loss during drought. Auxin and cytokinin promote growth, gibberellin stimulates stem elongation and seed germination. ABA also promotes seed dormancy and leaf senescence.
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