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Q. What do you mean by Alpha Taxonomy?
This relates to the basic or preliminary classification based almost entirely on external morphology. This can be considered as the empirical approach in taxonomy where the classification is synthesised from the observed facts. Alpha taxonomy has also been called Classical or Orthodox or Formal taxonomy. This has been practised since .ancient times and different aspects of this approach are in use even today. The name 'Alpha taxonomy' was given by Turrill (1935), while two phases of development in taxonomy come under this, approach according to other taxonomists such as Valentine and Love (1958), Davis and Heywood (1963). These phases are: i) the exploratory phase involving collection and subsequent classification; and ii) the systematic or consolidation phase involving extensive herbarium collections and field studies for preparing floras, monographs and detailed systems of classification.
Table provides you the classification of the living primates. The primate fossil history dates back to 60 million years i.e. to Paleocene times, more specifically to the cretaceous
FUNCTIONS (1 ) Intracellular digestion - Individual cells may obtain food through phagocytosis. The same is digested with the help of lysosomes. It is of two types:-
Senescence - Effects of Plant Growth Regulators on Development All five major growth regulator groups: auxins, gibberellins cytokinins, abscisic acid and ethylene can influenc
There is a population of 100 frogs. 20 are heterozygotes, 30 are homozygous recessive, 25 are homozygous dominate. What is the frequency of the dominate allele? The recessive allel
Locomotion in Annelida Before we discuss the details of locomotion in annelids, we have to recapitulate the major subdivisions of the phylum Annelida. Phylum Annelida contain
Q. What do you mean by ST Hystersis? Ans. The rate of recovery of ST depression has been recognized as a measure of ischaemia severity for many years. When comparing the m
Why are most ammoniotelic beings aquatic animals? Aquatic animals, like crustaceans, bony fishes and amphibian larvae, usually are ammoniotelic since ammonia diffuses more easi
CARE OF RECORDS Patient's/client's records are unquestionably a valuable documents. These should be made on paper of good quality and protected from soiling, and burning. Th
Permissive Interaction - Pancreas Development Figure describes the development of pancreas in a mammal. In an organism like mouse the pancreas is first seen as a diverticulum
Q. Which is the kind of nitrogen waste eliminated by beings of the class Reptilia? These beings excrete mainly uric acid this substance is less toxic than ammonia and it can be
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