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Dear students, prepare for biology class 9th chapter 1 long questions. These important long questions are carefully added to get you best preparation for your 9th class biology ch. 1 exams.
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Question: 1
Describe the relationship of biology to other sciences?
Answer: 1
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Question: 2
Define different branches of Biology.
Answer: 2
2-16
In order to study all the aspects of life, major divisions of biology arc further divided into different branches as defined below: (i) Morphology This branch deals with the study of form and structure of living organisms. (ii) Anatomy: The study of internal structures is called anatomy. (iii) Histology The microscopic study of tissues is called histology. (iv) Cell biology The study of structures and functions of cells and cell organelles is called cell biology. This branch also deals with the study of cell division. (v) Physiology This branch deals with the study of the functions of different parts of living organisms. (vi) Embryology It is the study of the development of an embryo to a new individual. (vii) Taxonomy It is the study of the naming and classification of organisms into groups and subgroups. (viii) Genetics The study of genes and their role in inheritance is called genetics. Inheritance means the transmission of characters from one generation to the other. (ix) Paleontology It is the study of fossils, which are the remains of extinct organisms. (x) Environmental Biology It deals with the study of the interactions between the organisms and their environment. (xi) Biotechnology It deals with the practical application of living organisms to make substances for the welfare of mankind. (xii) Socio-Biology This branch deals with the study of social behaviour of animals that make societies. (xiii) Parasitology This branch deals with the study of parasites.
Question: 3
Briefly describe the careers of biology.
Answer: 3
3-16
The following are the careers that a student of biology can plan to adopt. (I) Medicine / Surgery (a) Medicine deals with diagnosis and treatment of diseases in human. (b) In Surgery, the parts of body may be repaired, replaced or removed. For example, the removal of stones through renal surgery, transplantation of kidney, liver etc. (c) Both these professions are studied in the same basic course (MBBS) after higher secondary education and the students go for specializations. (ii) Fisheries (a) It deals with the study of fish production and enhancing the quality and quantity of fish production. (b) Professionals of fisheries are employed in fisheries departments of Pakistan. (c) This profession can be adopted after the bachelor or masters level study of zoology and fisheries. (iii) Agriculture (a) It deals with the study of food crops and animals which are the source of food. (b) An agriculturist works for the betterment of crops like wheat, rice, corn etc and animals. (c) This professional course can be adopted after the higher secondary education in biology. (iv) Animal Husbandry (a) It is the branch of agriculture concerned with the care and breeding of domestic animals (livestock) e.g. cattle, sheep etc. (b) This professional course can be adopted after the higher secondary education in biology. (v) Horticulture (a) It deals with the study of art of gardening. (b) A horticulturist works for the betterment of existing varieties and for the production of new varieties of ornamental plants and fruit plants. (c) This professional course can be adopted after the higher secondary education in biology. (vi) Farming (a) It deals with the development and maintenance of different types of farm. For example, in some farms, animal breeding technologies are used for the production of animals which are better protein and milk source. (b) In poultry farms, chicken and eggs are produced. (c) In fruit farms, different fruit yielding plants are grown. This profession can be adopted after the course of agriculture, animal husbandary or fisheries. (vii) Forestry (a) It deals with the study of natural forests and advises to the government for planting and growing artificial forests. (b) This professional course can be adopted after the higher secondary education in biology or after bachelor level study of zoology and botany. (viii) Biotechnology (a) It deals with the study and work for the production of useful products through microorganisms. (b) This professional course can be adopted after the higher secondary education in biology or after bachelor level studies of zoology or botany.
Question: 4
Explain the Islamic concept about origin of life.
Answer: 4
4-16
Allah hints about the origin and characteristics of living organisms at many places in the Holy Quran. Human beings have been instructed to expose the unknown aspects of life after getting the hints from the verses.
Question: 5
Describe the different Muslim Scientists in the field of biology.
Answer: 5
5-16
Question: 6
Describe separate and comparative description of all the levels of biological organization.
Answer: 6
6-16
Question: 7
Give comparison in cellular, colonial and multi cellular organization.
Answer: 7
7-16
Question: 8
Q no<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863552002897784869439">:</gwmw>5-a) How biology is related to other science? Describe any four
Answer: 8
8-16
The <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863552673031393814824">interelationship</gwmw>among different branches of science <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863553515189147327501">can not</gwmw> be denied biology include <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863553069482711388701">infomation</gwmw> on various aspects of <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863553215718558523676">liveing</gwmw><gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863553515187849037545">things but</gwmw> <gwmw class="ginger-module-highlighter-mistake-type-2" id="gwmw-15863553515181339452401">these</gwmw> <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863553316898555538767">ingormation</gwmw> <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863553515188160270500">relate</gwmw> to the other branch of science as well<div>Biochemistry:</div><div> It <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863554164226609944165">deal</gwmw> with the study of chemistry of different compounds and processes occurring<gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863554109227019798724">inlinving</gwmw> organism</div><div>For example:</div><div> The study of basic metabolism of photosynthesis and respiration involves the knowledge of chemistry.</div><div>Biomathematics<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863554922533322463886"> :</gwmw></div><div>It <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863555408964371744046">deal</gwmw> with the <gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863555408969909720561">study the</gwmw>study of biological processes using mathematical techniques and tools</div><div>For example:</div><div> <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863556220589023503592">to</gwmw> analyze the data <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863585587582770546121">gethered</gwmw> after experimental work, biologists have to apply the rules of mathematics.</div><div>Bio geography:</div><div> It <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863557317305953315590">deal</gwmw> with the study of the <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863556744130924123769">occurance</gwmw>and distribution of different species of living organisms in <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863557092953615243757">differernt</gwmw><gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863557317307921671263">geographical</gwmw> of the world. It applied the knowledge of the characteristics of <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863558182353538310942">particular geographical region</gwmw> to determine the <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863558040958972260732">charactersistics</gwmw> of living organisms found these.</div><div><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863558405130061410228">Bioeconomics</gwmw></div><div> It <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863584143329203792092">deal</gwmw> with the study of organisms from economical point of view</div><div>For example:</div><div> The most value and profit value of the yield of wheat can be calculated through <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863584702297629220081">bioeconomics</gwmw> and benefits or losses can be determined.</div>
Question: 9
Describe the contributions of different <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863587093625516362840">muslims</gwmw>scientists in the field of Biology.<div>A) Abdul Malik Asmai B) Bu <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863587706007258479613">ali</gwmw>Sina.</div>
Answer: 9
9-16
Abdul Malik Asmai:<div> Abdul Malik Asmai (740-828AD) He is considered the first <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863588799176380607843">muslim</gwmw> scientist who studied animals in detail His famous writing include Al- <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863589935072045419000">Abil</gwmw> (<gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863589406669770585574">carnel</gwmw>) Al- Khali (horse) Al - <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863589713293354073619">wahoosh</gwmw> (animal) and <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863589834653439028877">khalaq</gwmw> al Insan.</div><div><br></div><div> Bu - Ali - Sina (980-1037AD)</div><div> He is honored as the founder of medicine and called as <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863590470477183409026">avicema</gwmw> in the west. He was a physician. Philosopher astronomer and poet, one of his book al Qanun <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863591166469035873769">fi</gwmw>-al-<gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863591166464603334351">tib</gwmw> is known as <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863591166463421794371">the common</gwmw> of medicine in <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863591166467703807202">west</gwmw></div>
Question: 10
DescribeDivision of biology.
Answer: 10
10-16
There are three major <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863594362122109392182">division</gwmw> of <gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863594362120830594043">biology which</gwmw> study the different aspects of the lives of the major group of organisms.<div>Zoology:</div><div>This division of biology deals with the study of animals.</div><div>Botany:</div><div> This division of biology <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863595076378371130740">with</gwmw> the study of plants</div><div>Microbiology:</div><div> This division of biology deals with the study of microorganisms such as bacteria etc.</div><div>In order to study all the aspects of life these <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863597315304127399546">division</gwmw>are further dividedinto different branches defined below.</div><div>Morphology:</div><div> This branch deal with the study of form and structure of living organisms</div><div>Anatomy:</div><div> The study of internal structures is called <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863596744849956391336">anotomy</gwmw></div><div>Histology</div><div>The microscopic study of tissue is called Histology.</div>
Question: 11
Define biology and write notes three branches
Answer: 11
11-16
Biology is the scientific study of life<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863599175800660513710"> .</gwmw> The word biology has been derived fro two <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863599913509719997744">greek</gwmw>words'. <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863600971192099490200">bios</gwmw> meaning life and logos meaning thought or reasoning<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863600971198559453008">.</gwmw>In the course of <gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863600971198018240939">biology we</gwmw> will study how man study has thought about living things. To understand and <gwmw class="ginger-module-highlighter-mistake-type-2" id="gwmw-15863601720504094425530">appreciate nature it</gwmw> is essential to study the structure functions and relater aspects of living organisms.<div> Branches of biology:</div><div>Cell biology:</div><div> The study of the structure and function of cells and cell organelle is cell biology.</div><div>Physiology:</div><div> This branch deal with the study of the <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863608717131712000790">funcntion</gwmw>of different parts of living things.</div><div>Genetics:</div><div> The study of genes and their role in inheritance is called <gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863603607475875303264">genetics inheritance</gwmw> mean the transmission of character from one generation to the other</div><div> Embryology<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863603712055090789096"> :</gwmw></div><div>It is the study of <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863603989471026426281">development</gwmw> of an embryo to <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863603989474410214205">new individual</gwmw></div><div>Taxonomy:</div><div> It is the study of the naming and classification of organisms <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863604415596338096328">into</gwmw> <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863604415594723810006">group sub group</gwmw></div><div><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863604585891293609299">Palaeontology</gwmw>:</div><div> It is the study of fossils which are the <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863604876385407960795">remain</gwmw> of <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863609478052394049826">extrinct</gwmw> organisms</div><div>Environmental- biology:</div><div> It deals with the study of interaction between theorganisms and their environment</div><div><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863605950913748066044">Socia</gwmw>-biology:</div><div> The branch deal with the social behaviors of the animal that make societies</div><div>Parasitology:</div><div>This branch deal with the study of parasite.</div><div><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863606753289010731672">Ectomology</gwmw>:</div><div>It is the study of insect.</div><div><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863606964657391916330">Biptechnology</gwmw>:</div><div>It <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863607339639968291963">deal</gwmw> with the practical application of <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863607339638637848987">living organisms substance</gwmw> of welfare of <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863607465384688018137">mainkind</gwmw>.</div>
Question: 12
Define community and explain a with an example.
Answer: 12
12-16
Community:<div> A community is an assemblage of different population interacting with one another within the same environment. A forest may be considered as a community it includes different plant, microorganisms fungi and animal species. <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863615448615470939651">communities</gwmw>are collection of organisms In which one population may increase and <gwmw class="ginger-module-highlighter-mistake-type-2" id="gwmw-15863613728736079142313">other</gwmw> may decrease some community are complex forest community a pond <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863613676551426591373">commuity</gwmw>etc. <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863614025969382903652">other</gwmw> <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863615048524366837651">commmunities</gwmw> may be simple fallen log with various <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863614025968950503850">population</gwmw> <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863614025967707564534">under</gwmw> it. In a simple <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863614164442376224570">commmunity</gwmw>number and size of <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863614770236585461080">population</gwmw> is limited So any change in <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863614770234417844283">biotic and abioticfactor</gwmw> may have drasticand long lasting effects.</div>
Question: 13
Differentiate between prokaryotic and eukaryoticcells
Answer: 13
13-16
Prokaryotes possess prokaryoticcell which <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863617534818161274072">are</gwmw> much <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863617534815700313795">simple</gwmw> then the Bukaryotic cell<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863617534811425936082"> .</gwmw> The main difference between prokaryotic and eukaryoticcell are as <gwmw class="ginger-module-highlighter-mistake-type-2" id="gwmw-15863617993566698141121">fallows</gwmw><div>Nucleus:</div><div> Eukaryotic cells have prominent nuclei, while prokaryotic do not have <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863619604310948871291">promiment nucleus their</gwmw> chromosome consist of DNA only and it floatin <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863619604313148852295">cytoplasm</gwmw> near center<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863619604310812028289"> .</gwmw>This region is called <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863619604317896976496">nucleus</gwmw>.</div><div>Eukaryotic cells have membrane bounded organelles like Prokaryotes possess prokaryoticcell which<gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863617534818161274072"><gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863623860566941401201">are</gwmw></gwmw>much<gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863617534815700313795"><gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863623860562601215155">simple</gwmw></gwmw>then the Bukaryotic cell<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863617534811425936082"><gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863623860560097646216">.</gwmw></gwmw>The main difference between prokaryotic and eukaryoticcell are as<gwmw class="ginger-module-highlighter-mistake-type-2" id="gwmw-15863617993566698141121"><gwmw class="ginger-module-highlighter-mistake-type-2" id="gwmw-15863623878807913697810">fallows</gwmw></gwmw></div><div>Nucleus:</div><div> Eukaryotic cells have prominent nuclei, while prokaryotic do not have<gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863619604310948871291"><gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863623896793180616958">promiment nucleus their</gwmw></gwmw>chromosome consist of DNA only and it floatin<gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863619604313148852295"><gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863623896797242488444">cytoplasm</gwmw></gwmw>near center<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863619604310812028289"><gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863623896799817226589">.</gwmw></gwmw>This region is called<gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863619604317896976496"><gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863623896791457995030">nucleus</gwmw></gwmw>.</div><div><span style="background-color: rgb(255, 255, 255);">Eukaryotic cells have membrane bounded organelles like</span><span style="background-color: rgb(255, 255, 255);"></span><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863623908145871702510">mitrcbondria</gwmw><gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863624985530151434863">,</gwmw><span style="background-color: rgb(255, 255, 255);"></span><span style="background-color: rgb(255, 255, 255);">Golgi apparatus</span><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863623908143763514377">endopiasmic</gwmw><span style="background-color: rgb(255, 255, 255);"></span><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863623908154245821921">reticulum</gwmw><span style="background-color: rgb(255, 255, 255);"></span><gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863623908157413552072">etc</gwmw><gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863624985535055195460">,</gwmw>While such membrane bonded organelle are not present in prokaryotic cells.</div><div> The <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863625040771481742407">ribosomes</gwmw>of eukaryotic cell are larger in size are comparable to the <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863627666234933952236">ribosomes</gwmw>or<gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863627666231683483669">parkayotic</gwmw>cells</div><div>Eukaryotic cell <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863625969093009858759">are</gwmw> on average ten <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863625969099831468112">time</gwmw> larger <gwmw class="ginger-module-highlighter-mistake-type-2" id="gwmw-15863625969090307099612">then</gwmw> <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863625920794953377374">parkargotic</gwmw>cells</div><div>The cell wall of <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863626626775515365222">eukaryotic cell</gwmw> is made of cellulose or chitin<gwmw class="ginger-module-highlighter-mistake-type-6" id="gwmw-15863626626779171823136">.</gwmw>All prokaryotic cells have <gwmw class="ginger-module-highlighter-mistake-type-3" id="gwmw-15863626626777008971459">cell wall</gwmw> which is made of <gwmw class="ginger-module-highlighter-mistake-type-1" id="gwmw-15863626869326126636704">peptidoglycan</gwmw></div>
Question: 14
What do you know about science ?
Answer: 14
14-16
The organized study of nature is called science . The things present in this nature are beautiful balanced and the activities occurring in it are highly co-ordinated these processes and activities occur under some defined principles<div><br></div><div>Definition :</div><div>Science is the study in which observations are made , experiments are done and logical conclusions are drawn in order to understand the principles of nature</div><div>All the scientific information was included under one hand i-e science</div><div><br></div>
Question: 15
What is biology ? Explain its different divisions and branches .
Answer: 15
15-16
The biology has been derived from two Greek words<div>Bio means life</div><div>Logos means discussion , reasoning , thought</div><div>Definition : Biology is the scientific study of living things in which all aspects of living organisms are discussed . To understand and appreciate nature , It is essential to study the structure , function and related aspects of living organisms , the study of living organisms also provides information and remedies to human problems regarding health , food , environment etc</div><div><br></div><div>Definition of life : Life is a set of characteristics that distinguish living things from non-living objects</div><div>Characteristics of living living organisms :</div><div><div>Characteristics of living living organisms are as follows :</div><div>1: Movement 2: Growth 3: Nutrition 4:Respiration secretion 5: Sensitivity 6: Reproduction</div><div><br></div></div><div><br></div>
Question: 16
What is the relationship of biology to other sciences ?
Answer: 16
16-16
The relationship among different branches of science cannot be denied . Biology include information on various aspects of living things but these information relate to the other branches of science as well . Each branch of science has relationship with all other branches . For example : when studying the process of movement in animals , the biologists have to refer to the law of motion in physics . This form the basis of interdisciplinary sciences
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Jan 17, 2020

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