The basic unit of classification is?
The basic unit of classification is species.
Biosystematics aims at
Biosystematics is the study of diversity of organism and all their comparative and evolutionary relationships.
Systematics deals with-
The first step in taxonomic studies is:
The biological concept of species is mainly based on-
Binomial nomenclature means
Binomial Nomenclature means the scientific name of any organism consists of a generic epithet and a specific epithet. Generic name starts with capital letter and specific name with small letter. Both the names are written in Italics or underlined in manuscripts.
Plant nomenclature means:
Which of the following is a correct name?
First life on earth was
First living beings were formed in the environment of sea having abundant organic molecules. They absorbed the organic materials for sake of nutrition and hence were called chemoheterotrophs.
Plants differ from animals in having
For higher Plants, flowers are chiefly used as a basis of classification, because-
Biology is concerned with
Which is the most important but generally not used criteria for the identification of the species?
The first organisms to appear on earth were more like plants because
The most important feature of all living systems is to
Replication of the genetic material causes transfer of genetic material from one generation to the next.
Energy is utilized by cells for
Taxonomy refers to-
Which of the following is not true for a species?
Gene flow is the spread of genes through populations as effected by movements of individual and their propagules, e.g., Seeds spores ets. Gene flow ensures that all populations of a given species share a common gene pool, i.e., it reduces difference between populations. The interruption of gene flow between populations is a pre-requisite for the formation of new species.
Study of form and structure of organisms is
Practical significance of taxonomy is-
Which of the following is a species?
ICBN stands for
ICBN (International Code of Botanical Nomenclature) - It is one of the code of nomenclature which is independent of zoological and bacteriological nomenclature. The code applies equally to names of taxonomic groups treated as plants wheather or not these groups were originally so treated.
Which of the following statements regarding nomenclature is correct?
The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for
There are several factors and processes which differentiate living beings with non-living beings like reproduction, respiration, growth, etc. But among them reproduction is the only difference which differentiate without any exception living being with non-living beings.
Sequence of taxonomic categories is
With the discovery of more and more organisms, sometimes, it becomes difficult to adjust an organism to the traditional categories. Therefore to make taxonomic position of a species more precise, the various obligate categories in hierarchial classification are explained below. Division ® Class ® Order ® Family ® Genus ® Species
Group of organisms that closely resemble each other and freely interbreed in nature, constitute a-
Which of the following are characteristics of living things?
Life is a unique, complex organisation of molecules, expressing itself through chemical reactions which lead to growth, development, responsiveness, adaptation and reproduction.
Biological organisation starts with
Biological organisms starts with submicroscopic moleculer level like viruses, bacteria, etc.These organisms are unable to be seen by naked eyes without the help of microscope or even electron microscope.
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