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We may define biology as the field of sciences that comprises the study of the living world; it focuses mainly on the structure, functions, and working of the living world. The term biology is composed of two Greek words “bios” meaning “leaving” and “logos” meaning “knowledge”. Biology is a very vast field which encompasses a lot of other branches in it. Most of the students take up biology as a profession and pursue research in the field of biology, and get different biology assignment topics and need biology assignment help. NeedAssignmentHelp has biology theory experts which provide help with biology questions and gives all the biology answers to the students. Despite the fact that biology is a broad field and is more complex in the theories governing it, there are a lot of concepts of this discipline that are consolidated into one coherent field. Some theories of this particular field of science remain undeniably constant with every new research. The chief principle of biology lies beneath the basic structural unit of life which is known as the cell. Organisms of the entire earth are made from the same structural unit.

Further Trifurcations of Biology

The living beings on earth are only of three major types; the plants, the animals and then the extremely minute microorganisms. Biology is further trifurcated into the following mentioned broad disciplines namely, botany, zoology, and microbiology. NeedAssignmentHelp provides biology homework help for each of the below-mentioned disciplines of biology theory. We have a team of highly skilled experts which are available almost every time to provide you help with any kind of biology questions and hence, makes you capable enough of deducing the biology answers.

  • Botany – The term botany comes from the Greek word "botane" which means "grass". It is the branch of biology which includes the study of the plant world. It focuses on the study of structure, embryology, anatomy, morphology, distribution as well as the classification of the plants. Botany is yet another vast field embodying the study of plants; it can be further divided into a number of sub-disciplines. Plants include the trees, shrubs, small plants, the ferns, etc.  Botany is sometimes referred to as plant biology or phytology too. Botany interests a lot of students and today, the botany researchers study almost 410,000 species of plants present on the land. Hence, it is quite an emerging discipline in the field of research.
  • Zoology – This branch of biology basically involves the study of the structure, function, morphology, anatomy, physiology, behavior, reproduction, embryology of the various animals in the ecosystem. It focuses on the study of animal behavior and the working of the animal body. It is often regarded as animal biology. The term zoology comes from the ancient Greek word "zoion" which means animals and hence, it governs mainly the study and researches upon the animal kingdom specifically. Zoology is again a very vast branch which is further divided into numerous branches.
  • Microbiology – The branch of microbiology mainly deals with the organisms in the living world, which are not visible to the naked eyes and require specialized equipment to visualize them. Microorganisms are visible only under the specialized microscopes which are of different types. Some microorganisms are easily visible under the simple or the compound microscopes while some of them require specialized light and electron microscopes. Microbiology includes the study of the microbes which include bacteria, protozoa, viruses, algae, and the fungi. Study of each of the type of microorganism is done individually which collectively is termed as the microbiology. Also, all this discipline are studied individually too.

Different Branches of Biology

Biology is a very vast field which encompasses a lot of disciplines inside it which are further subdivided into sub-disciplines. Mentioned below are some biology major branches that interest most of the students all over the world.

  1. Anatomy is the branch dealing with the study of the internal structure of the living organisms.
  2. Bacteriology is the branch of biology which deals with the study of the bacteria.
  3. Cell biology deals with the study of the smallest and the structural part of organisms; cells.
  4. Ecology is the branch of the biology which deals with the relation of the living organisms with one another and their environment.
  5. Embryology is the branch of biology which deals with the study of the embryos of the various living organisms.
  6. Hematology is the branch of the biology which deals with the study of the blood and the blood-forming compounds.
  7. Molecular biology is the discipline of biology which deals with the study of the living organisms at the molecular level.
  8. Pathology is the study of the disease-causing organisms present in the environment.
  9. Biotechnology is the field of biology which deals with the manipulation and genetic changes in the normal living organisms for the production of various products.
  10. Genetics is the branch of biology which deals with the study of the genes and the structure and functions of genes.
  11. Medicine is the branch of the biology which mainly focuses on the deduction of various theories and laws in order to treat the various illness of the diseased body of the living organisms.
Scope of Biology

As discussed above, the biology theory is a vast field which encompasses in itself a lot of branches which provides the students with a number of avenues to pursue as a career. All the above-mentioned branches of biology include researches and hence, all the students who feel interested in these different disciplines of biology, can pursue higher education in the concerned fields. Mainly students get a bachelor’s degree in the desired field of biology and then pursue masters after that in the field. There is an increased demand for the biology theory experts and teachers and hence, this opens yet another avenue of career for the students.

Biology as a Subject

The subject Biology is an extremely vast subject and for completing biology assignments a lot of research and hard work is required. Different kinds of biology assignment with different biology assignment topics are given to the students of different countries. Biology involves a lot of memorizing and is less of a logical subject. It is a tremendously interesting subject and attracts a lot of students every year as it provides wider avenues. Biology governs with the study as well as the research of the life of different organisms on earth. Wouldn’t you be interested to know, from where we all evolved from? Yes, this is all comes under biology.

 

The Basic Structural Unit of Life: Cell

The basic structural and the functional unit of life, which governs all the activities taking place in living beings is the cell. Every living being is composed of one to numerous cells. On the basis of the number of cells present in the body, the organisms are subdivided into categories; organisms having a single cell are the unicellular beings while the organisms with more than one cell are multicellular. Cells are also called the building blocks of life which make up a living being. A cell consists of a certain number of cell organelles which collectively work and perform the functions of the cell. Organisms are subdivided on the basis of the cell type that they possess as the prokaryotes and the eukaryotes. Mainly all the living beings are eukaryotes except for the bacterial species which are termed as the prokaryotes. Prokaryotes are comparatively simpler.

Biological Classification

The biologists and the researchers have classified the organisms on the basis of their similarities; these similarities include the morphological, behavioral or genetic similarities. Biology is the study of the living beings, and we have over millions and trillions of organisms of the earth today, hence, in order to make the study of the living beings easier the scientists and the researchers have sub-divided the living beings according to the biological classification. Below mentioned are the seven ranks of the biological classification.

  • Species – The species is the most basic unit of classification and the smallest taxonomic rank. A species includes a group of the closely related organisms which can reproduce within them. It also constitutes the highest number of organisms.
  • Genus – It is a rank higher than the species according to the biological classification. It includes the organisms of the closely related species. A genus includes in itself a lot of species and it has a little less number of organisms as compared to species.
  • Family – A family in biology refers to the hierarchical rank which is a step higher than the genus. This rank includes a group of organisms which are closely related on the basis of the genus. A family encompasses a number of genus.
  • Order – It is the taxonomical rank which higher than the family and it includes the organisms of the closely related families. The order includes a number of Families. The term was first introduced for the first time by the botanist Augustus Rivinus.
  • Class – The next taxonomic rank according to which the organisms are divided is the class. The organisms of closely related orders are grouped in a single class. A taxonomist determines the composition of each and every class.
  • Phylum/Division – The second taxonomic rank is the Phylum or the division. The term phylum is used for the animals while the division is used for the plants. The five above mentioned kingdoms are divided into different phylum and divisions on the basis of the characteristics.
  • Kingdom – The kingdom is the highest rank of the taxonomy, biology includes 5 basic kingdoms namely, Plantae, Animalia, Fungi, Algae, and Bacteria. These kingdoms are further divided into various subdivisions.

Each of the above-mentioned ranks is individually called as the taxa and the complete process and the science behind the classification of the organisms according to these taxa is termed as taxonomy.

Problems Faced by Students Studying Biology Theory

There are a lot of universities and colleges all over the world which offer various courses in different fields of biology. Students pursue their favorite discipline of biology in their desired universities. Different universities follow different study patterns and provide with different biology assignment topics to the students. Biology theory is a difficult subject and requires a lot of concentration and hard work and hence, students often fail to get enough time to complete biology assignments as there is a lot to memorize as well in biology. Students fail in managing time for both the study and the completion of the biology homework. This is where NeedAssignmentHelp provides the students with biology homework help.

Student life is tough enough already. We can make it a little easier.

Get Biology Assignment Help by NeedAssignmentHelp Experts

NeedAssignmentHelp is the best assignment help service available on the web. The main motive of the portal is to eliminate the burden of completion of assignments and homework from the students so that they get ample time to study deeply the subject matter. Biology theory is one such subject which requires a lot of research work as it is extremely broad. At NeedAssignmentHelp, we have a team of professionals that are expert in the biology theory subject. Each of the subject experts of our team holds either a Ph.D. or a master’s degree in the concerned subject and hence, we assure you with a quality biology assignment help each time. Our experts work meticulously in finding out the biology answers and provide you help with biology questions. We have numerous services including dissertation, thesis, homework, course work and much more related to biology theory and students can get every kind of help on our portal very easily. We have a live chat support option to provide you with answers to your every doubt.

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