Minor Phyla : Acanthocephala
Minor Phyla : Acanthocephala
Characteristics:-
- Minute worm like endoparasites.
- No digestive cavity.
- Protrusible proboscis with recurved spine.
Some key features of acanthocephalan morphology
Chapter -2 Biological classification
Biological classification is the scientific procedure of arranging organisms into groups and subgroups on the basis of their similarities and dissimilarities and placing the group in a hierarchy of categories. Importance of classification :- It is not possible to study every organism. Study of one or two organism of a group gives sufficient information about the essential features of the group. It helps in identification of new organism. Classification helps in knowing the relationship amongst different groups of organisms. The organism of past cannot be studied without a proper system of classification. Classification :- (i)Artificial system of classification (ii)Natural system of classification (iii)Phylogenetic system of classification (i)Artificial system of classification- Only one or two morphological characters for grouping of organism is used. Flowering and non-flowering plants, enaima and anaima. Aristotle classification. (ii)Natural system of classificati...
