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What is adaptive convergence?
The Adaptive convergence is the phenomenon by which living beings facing the same environmental pressure (problems) and undergoing genetic variability and natural selection incorporate structures (solutions) and similar (analogous) organs into their bodies during evolution. For instance, the fins and the hydrodynamic body of dolphins and fishes phylogenetically distant animals.
why phloem made of living cells
BUCCAL CAVITY - Situated between upper & lower jaw. It is lined by stratified squamous epithelium. Separated from nasal chamber by palate. Palate forms roof of buccal cav
Light and Distribution We have mentioned in the beginning that the variation in the amount of light generally affects the global and local distribution of plants and animals. L
Q. How does self infection by tapeworms occur? The Taeniasis patients may develop the most severe form of the worm infection, cysticercosis, because their feces contain eggs
Why plant nutrients said to be essential An element is said to be essential if, (i) The deficiency of an element in plant, makes it impossible to complete the vegetative
How did the industrial revolution in England offer an example of natural selection? One of the classic instances of natural selection is regarding the moths of industrial zones
Explain about the Proteins? The term protein (Greek: proleuo- to occupy first place) was first suggested by Berzelius to describe the complex organic nitrogenous substances fou
Define Reagents for Determination of the Saponification Number of Fats? 0.5 N alcoholic KOH 0.5 N HCI Solid sodium carbonate 1% alcoholic solution of methyl orange
Uric acid is the main nitrogenous waste product of uricotelic organisms (birds, insects and reptiles), but is also established in ureotelic organisms from the breakdown of the puri
Q. Show How Adaptation affecting taste quality? Adaptation - A low concentration solution will not give any sensation after tasting a higher concentration solution due to the a
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