A biogeochemical cycle is a pathway by which a chemical substance moves through biotic (living world) and abiotic (lithosphere, atmosphere, and hydrosphere – non-living) components of Earth. Such cyclic flow involves the transfer of matter and energy between the different components of the biosphere.
Disease refers to any condition that disturbs or modifies the normal functioning of the living organisms. Each organ system of our body has specific organs to perform particular functions. In the presence of a disease, functioning or the appearance of one or more systems of the body may change. These changes give rise to symptoms and signs of disease.
First level of classification among plants depends on whether the plant body possesses well-differentiated distinct cellular components or not. Next level is based on the presence or absence of special vascular tissues for the transport of water and other substances. Further classification takes into account the ability to bear seeds and whether seeds are enclosed within the fruits or not.
Depending on these characteristics, kingdom-Plantae is divided as of Thallophyta, Bryophyta, Pteridophyta, Gymnosperms and Angiosperms.
Based on morphology, animal tissues can be grouped into four basic types. Multiple tissue types comprise organs and body structures. While all animals can generally be considered to contain the four tissue types, the manifestation of these tissues can differ depending on the type of organism.
The four basic Animal Tissues are: (i) Epithelial Tissue; (ii) Connective Tissue; (iii) Muscular Tissue; and (iv) Nervous Tissue.
Yes, this is all about how atoms combine to form molecules. Combination of atoms to form molecules can be explained by various laws. We not only cover these Laws, but see how actually atoms combine to form molecule, symbols and formula of atoms and molecules and various ways of expressing their masses.
Matter in our Surroundings covers topics like what is matter, characteristic properties of matter, States of Matter, Change of State of matter and Evaporation. We cover all these topics in depth. If you have any queries due leave them at the comments. We will positively answer it. Also sharing is caring. Share these notes with friends in facebook.
The Physics paper for Class 12 this will have a total of 26 Questions having a total of 70 Marks broken into to 5 Sections.
The questions will be of 1 mark, 2 marks, 3 marks, 4 marks and 5 marks each. If you have handle the Section C having 12 questions of 3 marks each, then you will surely score upward of and easy 55 marks this year in the Board Exam.
Have an awesome 2018. To make 2018 awesome, you need to believe in yourself. To believe in yourself, you should …