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Allotropes of carbon

CBSE Class 10 Chemistry Chapter 4: Carbon and its Compounds. The element carbon occurs in different forms in nature with widely varying physical properties. Both diamond and graphite are formed by carbon atoms, the difference lies in the manner in which the carbon atoms are bonded to one another. Fullerene is another allotrope of carbon.  

Excretion in Human Beings

CBSE Class 10 Biology Chapter 6: Life Processes. The excretory system of human beings includes a pair of kidneys, a pair of ureters, a urinary bladder and a urethra. Details of the excretion are explained in the video.  

Autotrophic Nutrition

CBSE Class 10 Biology Chapter 6: Life Processes. Carbon and energy requirements of the autotrophic organism are fulfilled by photosynthesis. Photosynthesis is a autotrophic nutrition in plants and it is explained in the video.  

Human Brain

CBSE Class 10 Biology Chapter 7: Control and Coordination. Is reflex action the only function of the spinal cord? Obviously not, since we know that we are thinking beings. The spinal cord is made up of nerves which supply information to think about. Thinking involves more complex mechanisms and neural connections. These are concentrated in the brain, which is the main coordinating centre of the body. The brain and spinal cord constitute the central nervous system.  

Tracing Evolutionary Relationships

CBSE Class 10 Biology Chapter 9: Heredity and Evolution. When we try to follow evolutionary relationships, how do we identify characteristics as common? These characteristics in different organisms would be similar because they are inherited from a common ancestor. Homologous and analogous characteristics are explained in this video.  

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