संज्ञा या सर्वनाम के जिस रूप से वाक्य का सम्बन्ध किसी दूसरे शब्द के साथ जाना जाए, उसे कारक कहते हैं। कारक का सीधा सम्बन्ध क्रिया से ही होता है। किसी कार्य को करने वाला कारक यानि जो भी क्रिया को करने में मुख्य भूमिका निभाता है, वह कारक कहलाता है। कारक को प्रकट करने […]
Introduction An allele is a variation of a certain gene. It is an alternative form of a gene. William Bateson and Edith R. Saunders coined the word “allele“. Alleles were originally known as “allelomorphs”. These paired copies of the same gene convey information for the expression of the same characteristics, yet they have distinct effects […]
Introduction Hormones are chemical substances that are released by ductless glands directly into the bloodstream. Although they are immediately released into the blood, only their intended target organs are affected. There are various hormones present in the body and all of them are controlled by the hypothalamus and hence it is known as the master […]
Introduction Antidiuretic hormone (ADH), also known as vasopressin or arginine vasopressin, is generated in the brain and stored in the posterior pituitary gland. It primarily regulates fluid output of the body by allowing the kidneys to reabsorb water during the process of ultrafiltration of blood. It is known as a nonapeptide since it is a […]
Introduction Biodegradable and non-biodegradable substances refer to the materials that make up the products and waste we use and discard in our daily lives. Biodegradable substances are made from organic materials and have a positive impact on the environment when properly managed and disposed of. Non-biodegradable substances, on the other hand, are made from synthetic […]
Introduction Haploid and diploid indicate the set of chromosomes in a cell or organism. Haploid refers to half the number found in the typical diploid cells of the same species and are typically found in gametes (eggs or sperm) or certain single-celled organisms. They contain a single set of genetic information, which can be beneficial […]
Introduction A natural resource is any naturally occurring substance that is used to sustain life and satisfy human needs. A wide range of natural resources that we use on a daily basis, are food, water, non-synthetic clothing, timber, metals, oil, coal, natural gas, sunlight, air, soil etc. One must be aware that not all of […]
Acclimatization: Introduction An organism’s capacity to adapt to changes in its environment is crucial to its ability to survive. An organism adapts to its changing environment by either acclimating to it or by adapting to it. Acclimatization occurs quickly and results in temporary physiological changes that guarantee survival. In contrast, adaptation leads to the creation […]
अलंकार दो शब्दों “अलम+कार” से मिलकर बना है, जिसका अर्थ है सजाना या आभूषण। जिस प्रकार स्त्रियाँ अपने शरीर को सजाने के लिए आभूषणों का प्रयोग करती हैं, उसी प्रकार काव्य को सजाने और उसे आकर्षित बनाने के लिए अलंकारों का प्रयोग किया जाता है। अलंकार मुख्यत: दो प्रकार के होते हैं 1.शब्दालंकार 2. अर्थालंकार […]