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Explain the role of cuvier in animal taxonomy?
Cuvier (1769-1832) was critical of Lamarck's evolutionary concept which thereafter remained in oblivion for half a century. Cuvier's outright criticisms of Lamarck greatly affected the progress of animal taxonomy during that period. And the following decades were known by emergence of three great ideas which influence a lot of progress in animal taxonomy. The first of these was 'Von Baer's Law' which was put forward by Von Baer. The, theory states that "The younger the embryo the more closely did it resemble other embryos of the same stage of development."
The second idea was an explanation of this rule by Ernst Hackel, which is known as Recapitulation theory or "Ontogeny repeats phylogeny".
Structure and Content of Halsted Reitan battery Although there are several versions of the Halsted Reitan battery, the differences tend to be minor, and there appears to be a
Q. Comparative picture of ecosystem? An ecosystem having higher diversity means the number of species and interactions between them which constitute the food web, is large. In
The three charges in the figure below are at the vertices of an isosceles triangle. Let q = 7.00 nC and calculate the electric potential at the midpoint of the base.
what are the types of pseudopodia
Preparation on the Morning of Surgery Morning care Hygiene Bowel and bladder emptying. Oral hygiene, remove dentures if any, no lipstick. Comb and make th
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Define Calcium requirements of infants? The calcium requirements of young infants are computed from the calcium content of breast milk and volume of breast milk intake. Up to 6
What do you understand by Pseudocoelomate? Animals that have a body cavity which is not completely lined by mesoderm. In past these organisms were referred to as the phylum Asc
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