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Neurotransmitters
We know that transmission of signals from nerves to muscles is affected by acetylcholine a transmitter substance. Similarly neuron-neuron transmission is also achieved by acetylcholine. But there are several other chemicals that function as neurotransmitters. A limited number has already been identified and new ones are being identified rapidly.
A chemical can be called a neurotransmitter in a given tissue only if it fulfils certain conditions like:
Dicots are one of the two main types of flowering plants; characterized by having two cotyledons, floral organs arranged in the cycles of four or five, and leaves with the reticul
What is the difference between the concepts of food chain and food web? The chain theory is a theoretical model to study the energy flux in ecosystems. In fact, in an ecosystem
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Directional or progressive selection is the mode of selection associated with environmental change. We said earlier that in an unchanging environment stabilising selection removes
Thus animals store surplus carbohydrate as glycogen; plants do so in form of starch. Starch is producing in the stroma of chloroplasts and stored there as starch grains. The Starch
Epidemiology Infection is transmitted by direct contact between infected domestic and wild animals and susceptible livestock; by arthropod vector (Phlebotomus, Aedes and Cul
The Waldorf family was caught in a fire but escaped. Unfortunately, the father and daughter suffered burns. The father had second-degree burns on his entire chest, abdomen, and bot
what is nitrogen cycle?
MUSCULOSKELETAL SYSTEM: Disease of the skin and musculoskeletal system occur commonly in early age group. There are not many statistics to prove the exact frequency of
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