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Ecosystems main functions are physical, chemical and biological processes. Which is required for if maintenance of ecosystem. Some important function-
1. Production of biomass by producers with the help of photosynthesis process.
2. Decomposition of complex organic material by decomposers into inorganic raw materials like CO2 , H2o and various nutrients.
3. The cycling of various nutrients like C,O,N,P,S through biogeochemical cycles.
4. The transfer of energy from one trophic level (eg. producers) t the next trophic level (eg. consumers) through food chain.
Explain the Sex Composition of the Population? Sex composition of human population is one of the basic demographic characteristics, which is extremely vital for any meaningful
Q. What is nidation? In which phase of the menstrual cycle does nidation occur? Nidation is the implantantion of the embryo in the uterus and Nidation takes place around the 7t
P o i s on i n g P e sticide toxicity Chemical pesticides were introduced as an important tool for pest control and have been used extensively in human health ope
Which biological molecule contains the genetic information that controls cellular functioning
Critical Thinking Why is it necessary to use the same restriction enzyme to cut two pieces of DNA that are to be joined together? As each restriction enzyme recognizes a specif
functions of arteries in mammals
Satellite DNA is useful tool in: 1. Organ transplantation 2. Sex determination 3. Forensic science 4. Genetic engineering Forensic science
Q. What is the group of the phylum Chordata that first colonized the terrestrial environment? From which habitat did they come? Partially aquatic partially terrestrial animals,
Aim: To prove that oxygen is evolved during photosynthesis. Apparatus: Beaker, funnel, test tube, water, Hydrilla plants. Procedure: Take a few pieces of Hydrilla plant. Keep a
Arteries - Circulation The arteries deliver blood from the heart. Figure shows the structure of arteries and the different layers of the vessel wall. The thick walls of these
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