APSC Prelims and Mains Notes, APSC Test Series
In order to form a zygote, male gametes in pollen grains have to fuse with egg in the ovule. This is achieved by the process called pollination. Pollination is the process of transferring pollen grains from the anther – male part of a flower, to the stigma – female part of a flower. Depending on … Read more
There are three interrelated hierarchical levels of biodiversity namely, genetic diversity, species diversity and community or ecosystem diversity. Genetic diversity It describes the variation in the number and types of genes as well as chromosomes present in different species. The magnitude of variation in genes of a species increases with increase in size and environmental … Read more
Cyclones: Types and Mechanism Cyclone is a system of low atmospheric pressure in which the barometric gradient is steep. Cyclones represent circular fluid motion rotating in the same direction as the Earth. This means that the inward spiralling winds in a cyclone rotate anticlockwise in the Northern Hemisphere and clockwise in the Southern Hemisphere of … Read more
Endogenic forces are the internal forces which are responsible for the formation of newundulations on the surface of the earth. Since they create new landforms they are also knownas the Forces of Construction.They are the result of the convectional currents formed in the mantle. The source of this heatis the primordial heat of the interior … Read more
Original jurisdiction means a lis or a matter where Supreme Court is the first court to be approached. Under Article 131 Supreme Court has original jurisdiction only in respect of disputes which involve Central and State Govt or two State Govt.. It can be in three forms. Union of India v. State, Union of India … Read more
Unemployment is a phenomenon that occurs when a person who is capable of working and is actively searching for the work is unable to find work. Different types of unemployment are as follows: Frictional Unemployment:The minimum amount of unemployment that prevails in an economy due to workers quitting their previous jobs and are searching for … Read more
Spores Some protozoans and many bacteria, plants and fungi reproduce via spores. Spores are structures naturally grown as part of an organism's life cycle and designed for separation from the organism and dispersal via a medium such as air or water. When conditions are correct, the organism will release its spores, which are each … Read more
Settlement can be defined as any form of human habitation which ranges from a single dwelling to large city. The word settlement has another connotation as well as this is a process of opening up and settling of a previously uninhabited area by the people. In geography this process is also known as occupancy. … Read more
External Respiration One method for obtaining oxygen from the environment is through external respiration or breathing. In animal organisms, the process of external respiration is performed in a number of different ways. Animals that lack specialized organs for respiration rely on diffusion across external tissue surfaces to obtain oxygen. Others either have organs specialized … Read more
Types of audits Product audit– An examination of a particular product or service (hardware, processed material, software) to evaluate whether it conforms to requirements (that is, specifications, performance standards, and customer requirements). Process audit– A verification that processes are working within established limits. It evaluates an operation or method against predetermined instructions or … Read more