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Q. Ecological Evidence of organisms to environment?
Ecology is concerned with organisms in relationships to their environment. These relationships may be classified as biotic, abiotic, spatial and temporal. Ecological studies demonstrate that the character states of many morphological features are correlated with environmental factors such as light, moisture, and soil fertility. The distribution of taxa both plants and animals, the variation within taxa and adaptations of organisms provide much information about the systematic position of various plant and animal species. As ecologists we should examine ecotypic variation. Edaphic specialisation, pollination mechanisms, the effect of habitat on hybridisation, plant herbivore interactions, seed dispersal mechanisms and ecology of seedling establishment. In plants the ecological information has implications for classification below the level of genus. These features are important in adaptation of populations to their environment. You can perform transplant experiments and grow under control the plants in order to study and describe the life histories and evaluate many characters.
In animals every species has its nearest relatives in food preference, breeding season, tolerance to various physical factors etc. You should know that when two closely related species coexist in the same general habitat they avoid fatal competition by their species-specific niche characteristics. Though the larvae of Drosophila rnulleri and Drosophila aldrichi live simultaneously in the decaying pulp of the fruits of the cactus (Opuntia lindheimerii) yet both have specialities in their preferences for certain yeasts and bacteria.
Explain about bimodal diurnal pattern Animals that show a bimodal diurnal pattern have their activity controlled by two biological clocks - one that controls the time of onset
Q. How can the binding of two amino acids for the peptide formation be explained? A peptide is formed when a carbon from the carboxyl group of one amino acid is connected to th
Why would a tongue not detect mild sweetness after eating foods with high sweetness? This happens due to of the "desensitization" of sensory receptors on the sensory cells of y
Q. How is the chromosome region where the centromere is located called, and how chromosomes classified in the relation to the position of their centromere? The chromosome regio
When a ventricQlar septa1 defect (VSD) is present, with no aortic stenosis, the peak velocitgr across the defect reflects the difference in pressure between the right ventricle an
Kinds of Hermaphroditism Depending upon the timing of maturity of the gonads, hermaphroditism can be of two types 1. Simultaneous hermaphroditism . Both male and female g
Q. What do you mean by Recovery Period? At the instant exercise is discontinued, the ECG recorded is turned on and left running for a few seconds while the blood pressure is re
Q. Etiological factor of dyspepsia? The main etiological factor of dyspepsia is the failure of proper digestion and absorption of food in the alimentary tract and the consequen
Enumerate the major substrates for gluconeogenesis The major substrates for gluconeogenesis are the glucogenic amino acids, lactate glycerol and (important in ruminant) propi
Explain the Absorption of Protein? Although single amino acids are liberated in the intestinal contents, there is insufficient power in the enzymes of the pancreatic juice to r
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