Which of the following statements about the nephron is correct? MCQ with Answer and Explanation

Explanation:
The IUCN Red List (Red Data Book) documents the conservation status of plants, animals, and fungi, categorizing species from Extinct to Least Concern. It highlights species at risk of global extinction. It is a critical tool for conservation policy and action. Endangered species like the Bengal tiger and snow leopard are listed. The Red Data Book was first published by IUCN in 1964.

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:
Living organisms exhibit irritability, i.e., they detect and respond to changes in their environment. Non-living objects can increase in size (e.g., crystal growth), possess mass, and occur in nature, but they lack consciousness and the ability to respond to stimuli. Thus, responsiveness is a defining property of life.