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What is vision? Why is vision important for life on earth?
Vision is the ability of some living beings to perceive, to differentiate and to interpret luminous stimuli.
Vision is significant on earth mainly in the terrestrial and in the superficial aquatic habitats because our planet is intensely exposed to sunlight and thus light and colors become distinguishing factors of objects present in the environment, even at distance. This distinction gave new survival strategies for the organisms, new protection mechanisms against external dangers, new ways to search food and to communicate with other individuals, new types of courting and reproduction behaviours, etc. That is, it formed new possibilities of interaction with the surrounds and enhanced capacity to explore new ecological niches.
What is folic acid? Why is the anemia caused by deficiency of folic acid known as megaloblastic anemia? The folic acid (when ionized it is known as folate) is a coenzyme that
Explain Night Blindness - micronutrient deficiencies? Night blindness is the earliest symptom of Vitamin 'A' deficiency. The reduction in the supply of vitamin A aldehyde i.e.
Energy Loss - Energy Flow Let us now take the second point that is the loss of some energy at each trophic level. You might recall that the second law of thermodynamics states
Coagulation - Blood Collection : Plasma is used to minimize the time needed for coagulation so it is used is medical emergencies. There are many types of anticoagulants used
Is it more indicated for a geneticist desiring to map the X chromosome of the mother of a given family (the researcher does not have access to her DNA, only access to the genetic m
An island may be colonised by just a few individuals, or just a pair:, or even a single gravid female. When a new population develops from these early colonisers of the island, the
Describe the structure of the intestines. How are they modified to carryout their functions? How does the human intestine compare to the fetal pig?
REPRODUCTIO N - It is not only production of new ones to increases its number but a means for the survival of a population on earth. Main aim is "survival and continuati
HOW ARE THE ORIGIN AND EVOLUTION OF ALGAE..
Q. What do you mean by neurotransmitters? - Nicotinic receptors (nicotine mimics the effects of Ach here). Found at NM-junction, ANS ganglions in general. Binding of Ach to
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