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RECAPITULATION THEORY / BIOGENETIC LAW
It was proposed by Muller & Haeckel on the basis of Baer's law.
According to it, in the development of animal phylum characters are formed first & species characters are formed in the last.
Hackel proposed recapitulation theory & explained that 'ontogeny repeats phylogeny' i.e. ontogenic development of the animal repeats the evolutionary history of the animal.
"Ontogeny repeats Phylogeny" -
Induction of metamorphosis started by thiourea
Explain the carrying capacity in ecology? Carrying Capacity : We have seen that natural populations do not normally achieve the maximum intrinsic rate of natural increase, o
Determine the following term - Amniote egg Eggs that shelter the developing embryo in a water-filled sac—the amnion. Characteristic of the amniote animals, which include reptil
If one determines the concentration of cortisol in the blood plasma to be 10 ugrams/ml and that in a 24 hour period a person excretes 10 mgs of cortisol, calculate the volume of bl
Relapse of infective endocarditis usually occurs within two months of the discontinuation of antimicrobial therapy. The relapse rate for patients with native-valve endocarditis cau
Explain Metabolic changes during infection With the rise in body temperature above normal (98.4 0 F or 37°C) due to infection several metabolic changes occur in the body
Obesity a health hazard: The factors of obesity are complex. Obesity is due to over eating and excess of energy intake. The obese child when grows up will be a target
Define Magnesium levels in erythrocytes and lymphocytes? Magnesium levels in erythrocytes and lymphocytes: These measures appear to provide a more accurate assessment of body M
what protist changes shape constantly and flows around its food to engulf it?
What is the Expression of Moisture Content? Moisture content, you would realize, is expressed in one of two ways i.e dry weight basis (dwb) or wet weight bases (wwb). Moisture
What is the first step normally taken when you look through the oculars? The nuclei of the cheek cells have been stained using a special dye so that they appear purple. What is the
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