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Question
If you are given a specimen, what are the steps that you would follow to classify it?
Solution 1
There is a certain common fundamental feature that helps in the classification of living organisms. The features that can be used in classification are as follows:
- Level of classification
- cellular level
- tissuel level
- organ level
- Body cavity
- Absent
- present
- Type of body symmetry
- Radial
- Bilateral
- Type of coelom development
- Acoelom
- Pseudocoelom
- True coelom
- Type of coelom
- Entercoelom
- Schinzocoelom
Solution 2
Various steps considered to classify a specimen are:
- Mode of nutrition – It can be autotrophic, holozoic, saprophytic or parasitic.
- Complexity of body structure: whether the specimen is unicellular or multicellular.
- Presence or absence of membrane bound organelles.
- Body symmetry, i.e., the plane by which an organism can be divided into two equal halves,
- Presence or absence of coelom, it can be acoelomates, pseudocoelomates, eucoelo- mates.
- Phylogenetic relationship.
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