Bustling Mind

  Central nervous system consist of brain and spinal cord.  The brain is the Central processing organ of the body. It is also known as the 'command and control system'.  It controls the voluntary movements, balance of the body, functioning of vital involuntary organs (e.g, lungs, heart, kidneys, etc.). Thermoregulation, hunger and thirst, circadian (24-hour) rhythms of our body, activities of several endocrine glands and human behaviour. It is also the site for processing of vision. hearing, speech, memory, Intelligence, emotions and thoughts.The human brain is well protected by the skull. Inside the skull, the brain is covered by cranial meninges consisting of an outer layer called duramater, a very thin middle layer called arachnoid and an inner layer (which is in contact with the brain tissue) called piamater. The brain can be  divided into three major parts: (1) forebrain (2) midbrain, and (3) hindbrain.  FOREBRAIN: The forebrain consists of cerebrum, t...

  Basic symbols to learn to derive floral formula: This family is also known as the potato family. Vegetative characters: Roots: Tap root system is found. Leaf: Leaves are simple, entire, lobed, exstipulate, and petiolate. Leaves show alternate or terminal phyllotaxy in the vegetative regions. And in the region of inflorescence, leaves appear to be opposite or whorled Stem: The stem is aerial, erect, and mostly herbaceous. FLORAL CHARACTERS: Inflorescence: It is usually cymose type. Flower: The flowers appear to be solitary and axillary as in Datura. Calyx: The calyx consists of 5 sepals that are fused (gamosepalous). The aestivation is valvate. The calyx in some plants (Solanum) is persistent and much enlarged in fruit. Corolla: The corolla consists of 5 petals. Corolla is gamopetalous and funnel-shaped (Datura), campanulate (physalis), and rotate (Solanum). The aestivation is valvate or twisted. Androecium: Stamens are five in number, epipetalous on the corolla tube, and alternat...

                                               Based on characteristics, all living organisms can be classified into different taxa. This process of classification is taxonomy. A taxonomic group of any rank, such as species, family or class is taxon or taxa. External and internal structure, along with the structure of cell, development process and ecological information of organisms are essential and form the basis of modern taxonomic studies.  Characterisation→identification→classification→nomenclature What is systematics? The branch of biology that deals with classification and nomenclature;taxonomy. Systematics is the study of organism identification, classification, and nomenclature. It is focused on how partnerships between creatures have evolved. Systematics has been used to divide organisms into distinct kingdoms. The study of the different types and d...