BIOLOGY M.C.Q (1 Marks)

Kingdom $\rightarrow$ Phylum $\rightarrow$ $[A]$ $\rightarrow$ Order $\rightarrow$ $[B]$

$(i)$. Genus comprises a group of related species.

$(ii)$. Taxon represents a taxonomic group of individual organisms.

$(iii)$. Family comprises a group of related genera.

$(iv)$. Taxonomic category class includes related orders.

$(i)$ Each step or rank in hierarchy is called taxonomic category.

$(ii)$ Species is a group of individual organisms with fundamental similarities capable of breeding among themselves.

$(iii)$ Taxonomic studies of all unknown organisms have led to the development of common categories like kingdom, phylum or division, class, order, family, genus and species.

$(iv)$ Lower the category, greater is the difficulty of determining the relationship to other taxa at the same level.

$(i)$ Genus comprises a group of related species which has more characters in common in comparison to species of other genera.

$(ii)$ Three different genera such as Solanum, Datura and Petunia are placed in the family malvaceae.

$(iii)$ In case of plants, classes with a few similar characters are assigned to a higher category called phylum.

$(i)$ It is the basic unit of classification.

$(ii)$ It is defined as the group of individuals which resemble in their morphological and reproductive characters and interbreed among themselves and produce fertile offsprings.

$(iii)$ Human beings belong to the species sapiens which is grouped in the genus Homo.

$(i)$ Lower the taxon, more are the characteristics that the members within the taxon share.

$(ii)$ Order is the assemblage of genera which exhibit a few similar characters.

$(iii)$ $Cat$ and $dog$ are included in the same family Felidae.

$(iv)$ Binomial nomenclature was introduced by Carolus Linnaeus.

 $\begin{array}{|l|l|} \hline Column\,\,I & Column\,\,II \\ \hline P.\,\,Kingdom & 1.\,\,indica \\ \hline Q.\,\,Order & 2.\,\,Musca \\ \hline R.\,\,Famiy & 3.\,\,Fungi \\ \hline S.\,\,Genus & 4.\,\,Canidae \\ \hline T.\,\,Species & 5.\,\,Polymoneales \\ \hline \end{array}$

$P \ \ Q\ \ R \ \ S\ \ T $

 $\begin{array}{|l|l|} \hline Col\,\,A & Col\,\,B  \\ \hline 1.\,\,Species & P.\,\,Solanum \\ \hline 2.\,\,Genus & Q.\,\,Leo \\ \hline 3.\,\,Family & R.\,\,Polymoniales \\ \hline 4.\,\,Order & S.\,\,Felidae \\ \hline \end{array}$

 $\begin{array}{|l|l|} \hline Column\,\,-\,\,I & Column\,\,-\,\,II \\ \hline 1.\,\,Solanaceae & A.\,\,Species \\ \hline 2.\,\,Felis & B.\,\,genus \\ \hline 3.\,\,Tuberosum & C.\,\,family \\ \hline & D.\,\,order \\ \hline \end{array}$

$(i)$ Classification is providing standardized names to organisms such that a particular organism known by the same all over the world.

$(ii)$ Taxonomy is the correct description of an organism and to recognition in its scientific name.

$(iii)$ The system of naming with two components (binomial nomenclature) is proposed by Carolus Linneaus.

$(iv)$ Zoological names are based on International Code for Zoological Nomenclature $(ICZN)$.

$(1)$ Biological names are given in two words

$(2)$ Genus starts with a capital letter while Species name starts with a small letter

$(3)$ Name of author appears first in the nomenclature

$I.$ Biological names are generally in Franch

$II.$ First word in biological name represents the genus

$III.$ Second word in biological name is written in capital letter

$IV.$ When the scientific name is hand written underline should be done.

$(i)$. Fungi - Regeneration

$(ii)$. Mossess - Fragmentation

$(iii)$. Planaria - Budding

$(i)$ Irreversible increase in mass   $(ii)$ Uncontrolled $\&$ Repeated Cell Division     $(iii)$ Increase in no. of Individuals   $(iv)$ Reproduction  

$(i)$ Grows from external surface by collecting substance on it.

$(ii)$ Grows from internal surface like living.

$(iii)$ Do not grow at all.

Which of the followings option is correct?

$(i)$ Reproduction is synonymous with growth

$(ii)$ Grow by cell division.

$(iii)$ Growth and reproduction are mutually exclusive events With respect to growth and reproduction, which all statements are true

$(i)$ All living organisms have ability to respond the environment stimuli which could be physical, chemical or biological.

$(ii)$ Plants respond to external factors like light, water, temperature, other organisms, pollutants, etc.

$(iii)$ Photoperiod affects the process of reproduction.

$(iv)$ Human being is the only organism who has self consciousness.

$(i)$ Reproduction is the production of progeny possessing features dissimilar to their parents.

$(ii)$ The fungi, the filamentous algae, the protonema of mosses, all multiply by budding.

$(iii)$ Many organisms like mules,sterile worker bees do not reproduce.

$(iv)$ Reproduction is not an all-inclusive defining characteristic of living organisms.

$(i)$ Increase in mass $(ii)$ Differentiation $(iii)$ Increase in number of individuals $(iv)$ Response to stimuli

$(1)$ Growth and Reproduction are inclusive events.

$(2)$ unicellular organisms grow by cell division.

$(3)$ Both are exclusive

$(i)$ Every organism can grow.

$(ii)$ Every organism gives birth to a child without any exception.

$(iii)$ Amoeba like organism can reproduce

$(i)$ Have an independent life.

$(ii)$ Organs development.

$(iii)$ Perform metabolic activity for life.

$(iv)$ Tissue constitute

$Y$ - Growth is character of only non-living.

$Y$ - Metabolic reactions can be demonstrated outside the body in cell free system

$1.$ It is character of non living

$2.$ It is character of living organism

$3.$ It could not be physical, chemical or biological

$(i)$ Growth cannot be taken as a defining property of living organism.
$(ii)$ Dead organism does not grow.
$(iii)$ Reproduction cannot be an all inclusive defining characteristic of living organisms.
$(iv)$ No non-living object is capable of replicating itself.
$(v)$ Metabolism in a test tube is non-living.
$(vi)$ Metabolism is a defining feature of all living organisms.