Allen Rapid Revision Course 2020 Lectures[Biology] - IIT JEE NEET Materials & Engineering Notes

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Animal Kingdom

Allen Rapid Revision Course Free Download. Attributes of Animal Kingdom Classification Animal kingdom comprise of multicellular eukaryotic animals and is one of the kingdoms among five kingdom scheme of classification (by Whittaker).

Breathing

Breathing and Exchange of Gases

Allen Rapid Revision Course of Breathing and Exchange of Gases free download google drive mega vimeo. Exchange part is the site of actual diffusion of O2 and CO2 between blood and atmospheric air. The lungs are situated in the thoracic chamber which is ...

Digestion

Digestive System

Allen Rapid Revision Course of Digestive System free download google drive mega vimeo. Digestion is the process of breaking down complex food particles into simpler forms to absorb nutrients. The digestive system of humans comprises an alimentary canal. There are various glands associated with it.

Excretion

Excretory System

Allen Rapid Revision Course of Excretory System free download google drive mega vimeo. The excretory system is a passive biological system that removes excess, unnecessary materials from the body fluids of an organism, so as to help maintain internal chemical homeostasis and prevent damage to the body.

Locomotion

Locomotion and Movement

Allen Rapid Revision Course of Locomotion and Movement free download google drive mega vimeo. Movement is when the living organism moves a body part or parts to bring without a change in the position of the organisms. Locomotion is when the movement of a part of the body leads to change in the position and location of the organism.

Nervous

Nervous System

Allen Rapid Revision Course of Nervous System free download google drive mega vimeo. The nervous system is a highly complex part of an animal that coordinates its actions and sensory information by transmitting signals to and from

Reseptors

Receptors Eye and Ear

Allen Rapid Revision Course of Receptors Eye and Ear free download google drive mega vimeo. Sensory receptors occur in specialized organs such as the eyes, ears, nose, and mouth, as well as internal organs. Each receptor type conveys a distinct sensory modality to integrate into a single perceptual frame eventually.

Cell

Cell Structure and Functions

Allen Rapid Revision Course of Cell Structure and Functions free download google drive mega vimeo. The cell structure comprises individual components with specific functions essential to carry out life's processes. These components include- cell wall, cell membrane, cytoplasm, nucleus, and cell organelles.

Plant Physiology

Plant Physiology(2 Parts)

Allen Rapid Revision Course of Cell Structure and Functions free download google drive mega vimeo. It is the sub–discipline of Botany which focuses on functioning and physiology of plants. Some of the closely related fields are Plant Ecology

Sexual Reproduction in Flowering Plants

Allen Rapid Revision Course of Sexual reproduction in flowering plants free download google drive mega vimeo. Sexual reproduction in flowering plants involves the production of male and female gametes, the transfer of the male gametes to the female ovules in a process called pollination.

Evolution

A chemical bond is a lasting attraction between atoms, ions or molecules that enables the formation of chemical compounds. The bond may result from the electrostatic force of attraction between oppositely charged ions as in ionic bonds or through the sharing of electrons as in covalent bonds.