Biology

Biological Classification Basis

Biological classification is the scientific process of classifying organisms into hierarchical groups and subgroups based on their similarities and differences. Several biologists have contributed to this classification method, which took years for researchers to decide on the most fundamental traits. What is Biological Classification, and how does it work? Biological classification is a logical technique […]

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Biological classification

Biological classification is the scientific approach of categorising organisms and subgroups according to their similarities and differences and arranging the group in a hierarchical order of classifications. Significance of Classification System It is not easy to study each organism; analysing one or two group organisms will help attain adequate information regarding the significant features of

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Binomial Nomenclature

Introduction Binomial nomenclature is a binomial naming system about organisms or species. A binomial name means that it has two parts. These two parts are the generic name (genus name) and the specific name, also known as a specific epithet. These names form part of the botanical nomenclature. In short, it is a type of

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Bacteria Domain

Carl Woese et co. established the three-domain approach to biological categorisation in 1990. It classifies cellular life forms into three domains: Archaea, Bacteria, and Eukarya. Archaea and Bacteria were classified as prokaryotes. Archaea is a class of organisms that includes primitive prokaryotes that exist in harsh settings known as archaebacteria. Archaebacteria are included in this

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Arthropoda

Arthropoda is the most diverse phylum, containing approximately nine lakh species. Their habitats can range from aquatic to terrestrial to parasitic. They have chitinous exoskeletons and jointed appendages, which allow them to move freely. This phylum contains several large classes, the largest of which is Insecta, which represents a significant portion of the world’s animal

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

ARCHAEA DOMAIN

Any of a group of single-celled prokaryotic species (i.e., organisms without a distinct nucleus) with molecular characteristics that separate them from bacteria (the other, more prominent group of prokaryotes) and eukaryotes. The word archaea comes from the Greek word archaios, which means “ancient” or “primitive,” and some archaea do have characteristics that fit this definition.

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Arch

Arch is a structure, consisting of a curved op on two supports, that holds the weight of something above it. The word arch is used in various fields and has different meanings. Like in the medical field, the arch is any organ or part of the body that is curved in shape etc. Arch Arch

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Apocarpous

The stigma, style, and ovary are the three main structures of the gynoecium, carpel, or pistil. It is the female reproductive portion of the flower that carries the female gametes or ovules within an ovary. The female reproductive component, as well as other sections, are supported by the pedicle or thalamus, which is located near

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Apis dorsata/Rock bee

The goliath bumblebee, Apis dorsata fabricius or rock bee, can be found across southern Asia. The three subspecies of Apis dorsata are Apis dorsata dorsata, Apis dorsata binghami and Apis dorsata breviligulata.  The nests of rock bees are different from the western bumble bees – Apis mellifera L. Rock bees usually assemble near exposed areas

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants

Animal like Protists

The term “protist” refers to a wide group of unicellular and multicellular creatures. Protists have membrane-bound organelles and are classified as eukaryotes, meaning they have a nucleus. Protists are polyphyletic, deriving from multiple common evolutionary ancestors. They are organisms that resemble other species such as plants, animals, or fungi but lack the qualities necessary to

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Anatomy of flowering plants: Tissue systems, Biology, Class 11, NEET, Structural Organisation in Animals and Plants