Question 1

Which one of the following aspects is an exclusive characteristic of living things?

Accepted Answer

(c) Perception of events happening in the environment and their memory.

Question 2

The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability for

Accepted Answer

The living organisms can be unexceptionally distinguished from the non-living things on the basis of their ability of responsiveness to touch.

Question 3

Biological organisation starts with

Accepted Answer

Molecular assemblies are large organised sets of molecular units that make up parts of organelles. For example, one common macromolecular assembly is the microtubule which is important in forming structure in the cell related to maintaining the cell structure or related to cell movement. The cell (plasma) membrane surrounds many organelles and the cell is a highly organised molecular assembly.

Question 4

ICBN stands for

Accepted Answer

The International Code of Botanical Nomenclature (ICBN) is a set of rules and recommendations dealing with the formal name botanicalnames given to plant. The foundations of ICBN are given in book written by C. Linnaeus named Philosophia Botanica. It is independent of zoological nomenclature.

Question 5

Biosystematics aims at

Accepted Answer

Biosystematics is the study of identification, nomenclature, classification and relationships amongst living beings. In other words, it is the study of diversity of organisms, their comparative and evolutionary relationships based on comparative anatomy, ecology, physiology, biochemistry and other fields.

Question 6

The book 'Genera Plantarum' was written by

Accepted Answer

Bentham and Hooker in their monumental work Genera Plantarum (1862-1883) have provided elaborate keys for the easy identification of 202 natural orders and genera.

Question 7

Linnaeus is credited with

Accepted Answer

Binomial nomenclature was first given by C. Linnaeus (1735) in his book "Systema Naturae" and later in "Species Plantarum" (1753). He used two latin words for any organism, the first being generic name and the second is specific name. The generic name begins with capital letter and the species name with small letter.

Question 8

Linnaeus evolved a system of nomenclature called

Accepted Answer

Linnaeus evolved a system of nomenclature called binomial nomenclature .

Question 9

The term "New Systematics" was introduced by

Accepted Answer

The term "New Systematics" was given by Julian Huxley (1940). This classification takes into account the cytological, morphological, genetical, anatomical, palynological and physiological characters.

Question 10

Which one of the following organisms is scientifically correctly named, correctly printed according to the International Rules of Nomenclature and correctly described?

Accepted Answer

Plasmodium falciparum is a protozoan parasite, one of the species of Plasmodium that causes malaria in humans. Being digenetic, its life cycle is complete in two hosts - man and mosquito.

Question 11

Which one of the following animals is correctly matched with its particular taxonomic category?

Accepted Answer

Tiger - tigris, species is correctly matched.

Question 12

Species are considered as

Accepted Answer

Species is a natural population or group of natural populations of individuals which are genetically distinct and reproductively isolated with similar essential morphological traits. Species is also a genetically closed system because its members do not interbreed with members of other species.

Question 13

Which of the following is less general in characters as compared to genus?

Accepted Answer

A taxonomic hierarchy is the sequence of arrangement of taxonomic categories in a descending order during the classification of an organism. There are seven obligate categories - kingdom, division , class, order, family, genus and species. Species is the lowest category while kingdom is the highest category. The number of common characters is maximum in case of organisms placed in the lowest category. Number of common characters decreases with the rise in category. Species are the smallest group of individuals which can be recognized by ordinary methods as groups and which are consistently and persistently different from other groups because their characters are less general.

Question 14

'Taxon' is the unit of a group of

Accepted Answer

Taxon refers to all the categories in the taxonomic hierarchy. It may be a kingdom, class, order, family, genus or species. It is any level of grouping of organisms. Each of these categories has been divided further into intermediate categories like subkingdom, subdivision, superclass, subgenus, subspecies, etc.

Question 15

Sequence of taxonomic categories is

Accepted Answer

division - class - order - family - tribe - genus - species.

Question 16

The term phylum was given by

Accepted Answer

(b) Haeckel

Question 17

A group of plants or animals with similar traits of any rank is

Accepted Answer

A taxon (plural taxa) or taxonomic unit, is a name designating an organism or group of organisms. A taxon is assigned a rank and can be placed at a particular level in a systematic hierarchy reflecting evolutionary relationships.

Question 18

A taxon is

Accepted Answer

A taxon is a taxonomic group of any ranking.

Question 19

Basic unit or smallest taxon of taxonomy/ classification is

Accepted Answer

Basic unit or smallest taxon of taxonomy/ classification is species. Species is a group of individuals that resemble one another in all essential morphological and reproductive characters so that they are able to interbreed freely and produce fertile offspring.

Question 20

Static concept of species was put forward by

Accepted Answer

Linnaeus

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Solutions for 33 Years NEET-AIPMT Chapterwise Solutions - Biology 2020

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