Please wait...
/
-
Select the correctly written scientific name of Mango which was first described by Carolus Linnaeus.
According to binomial nomenclature, the first word denoting the genus starts with a capital letter while the specific epithet starts with a small letter. E.g., scientific name of mango is Mangifera indica. Name of the author appears after the specific epithet, i.e., at the end of biological name and is written in an abbreviated form, e.g., Mangifera indica Linn. It indicates that this species was first described by Linnaeus.
Which of the following is against the rules of ICBN?
According to International Code for Botanical Nomenclature (ICBN) the first word denoting the genus starts with a capital letter while the specific epithet starts with a small letter.
Nomenclature is governed by certain universal rules. Which one of the following is contrary to the rules of nomenclature?
Biological names are derived either from Latin language or are latinised. This is because Latin language is a dead language and therefore it will not change in form or spellings with the passage of time.
In which kingdom would you classify the archaea and nitrogen-fixing organisms, if the five kingdom system of classification is used?
The Kingdom Monera includes all prokaryotes. They are basically unicellular. The archaea and nitrogen fixing organisms are placed under monera. All others fungi, plantae, protists and animalia are eukaryotic.
In five kingdom system, the main basis of classification is
Whittaker’s system is based on the following three criteria –
• complexity of cell structure • complexity of the body organization • mode of nutrition.
On the basis of these criteria, Whittaker divided organisms into five kingdoms. These five kingdoms are monera, protista, algae, fungi and animalia. In the five kingdom classification, all prokaryotes have been placed in Kingdom Monera, all unicellular eukaryotes in Kingdom Protista, Fungi (except slime moulds and water moulds) in their separate Kingdom while Kingdom Plantae and Kingdom Animalia have been retained for multicellular, autotrophic and multicellular holozoic organisms respectively.
Phylogenetic classification is one which is based on
Phylogenetic systems of classification bring out evolutionary relationships of organisms. Phylogenetic systems of classification came into existence after acceptance of doctrine of evolution and natural selection propounded by Charles Darwin in his book “On the origin of Species” by means of Natural Selection. Darwin had put forward the view that the present day plants/animals originated from some ancestral ones after undergoing some periodical changes. So the phylogenetic classification is based on the evolutionary descent of a group of organisms and the relationships are depicted through a phylogram and a cladogram.
System of classification used by Linnaeus was
Linnaeus put forward an “Artificial system” of plant classification which was based on sexual characters like cryptogamia, monoecia, monandria, diandria, polyandria, etc. It is commonly also called as sexual system of plant classification.
Which one of the following statements about certain given animals is correct?
Acoelomates are animals having no body cavity or coelom. Examples are poriferans, coelenterates, ctenophora, platyhelminthes. In pseudocoelomates, body space is pseudocoelom or false coelom. Examples are aschelminthes. In coelomates, body space is a true coelom enclosed by mesoderm on both sides. Remaining phyla from annelida to arthropoda are coelomates. Molluscs and insects are coelomates while flatworms are acoelomates.
Which one of the following groups of animals is bilaterally symmetrical and triploblastic?
Aschelminthes is a phylum consisting of pseudocoelomates. These are mostly aquatic, free living or parasitic. Their body is slender, bilaterally symmetrical and triploblastic.
Metameric segmentation is the characteristic of
The term metamerism refers to a linear repetition of parts in an animal body. It occurs in three highly organized phyla : Annelida, Arthropoda and Chordata. Each segment is called a metamere, or somite. Segmentation often affects both external and internal structures. Such a condition is called metameric segmentation. In chordates, the segmentation is apparent only in the embryonic stage. In the adult chordates, segmentation is visible in the internal structures, such as vertebrae, ribs, nerves and blood vessels.
Correct (-)
Wrong (-)
Skipped (-)