Diversity of Living Organisms Short Notes PDF: Find below the important notes for the chapter, Diversity of Living Organisms as per the NEET Biology syllabus. This is helpful for aspirants of NEET and other exams during last-minute revision. Important notes for NEET Biology- Diversity of Living Organisms Short Notes PDF cover all the important topics and concepts useful for the exam.
The Earth is the main area where living organisms live. The world consists of millions of living organisms that sometimes we cannot even see with our naked eyes. These organisms are found to be living in various habitats that include forests, oceans, deserts, lakes, mountains, and even hot water springs.
Diversity in living organisms can be experienced everywhere on earth. The warm and humid regions of the earth are highly diverse and are called the region of mega biodiversity. 12 countries in the world have more than half of the biodiversity in the world. India is one of them.
Each individual has a unique DNA set up. We differ amongst human beings in the way we look and different attributes contributing to it such as our height, complexion etc. If we compare ourselves with a different species like a horse or a fish, we would definitely vary greatly in almost all aspects but if a horse is compared to a zebra, we would be able to draw a few differences only.
Common Name | Biological Name | Genus | Family | Order | Class | Phylum/ Division |
Man | Homo sapiens | Homo | Hominidae | Primata | Mammalia | Chordata |
Housefly | Musca domestica | Musca | Muscidae | Diptera | Insecta | Arthropoda |
Mango | Mangifera indica | Mangifera | Anacardiaceae | Sapindales | Dicotyledonae | Angiospermae |
Wheat | Triticum aestivum | Triticum | Poaceae | Poales | Monocotyledonae | Angiospermae |
Taxonomical aids are the collections of samples or preserved organisms which help in extensive research for the identification of various taxonomic hierarchy. Classifying organisms into various categories needs a lot of field and laboratory study. This is an essential process, because taxonomic categorization helps in identifying many organisms necessary in various fields like agriculture, industries, bio resources, etc. The taxonomical Aids are the main source which helps us in studying the relative level of a group of organisms, their taxonomic hierarchy and the taxonomic rank.
Herbarium: It is a store that houses a collection of preserved plant species. Plant specimens are preserved in forms of herbarium sheets which are prepared by drying, pressing and preserving the samples on sheets. These sheets are then arranged in their order of classification in the taxonomic hierarchy. These herbarium sheets carry all the information about the respective specimen.
Botanical garden: These are gardens in which specific plants are grown and are labelled according to their taxonomy. Thus, the labels carry their scientific names and family. The main purpose of botanical gardens is to identify the plant species under consideration.
Museum: Biological museums are found in schools and colleges; like the biology laboratory that we find in our schools. In these museums, plants and animal species are preserved in jars and containers with the help of appropriate preservatives. They may also be dried and preserved. Birds and larger animals are usually stuffed before preserving and insects are killed and pinned in the boxes. We sometimes find skeletons of various animals too.
Zoological park: These are places where animals and birds are kept in protected boundaries. An attempt is made to provide them with a habitat closest to their natural habitats. Thus, we get a chance to learn about their natural habits and behaviour. Zoological parks are open for human visits.
Key: This is a taxonomical aid where plants and animals are recognized based on contrasting characteristics known as keys. Two contrasting keys are generally kept as a pair, thus leading to acceptance of one and rejection of another.
These are unicellular prokaryotes.
They lack a true nucleus.
They may or may not contain a cell wall.
They may be heterotrophic or autotrophic.
For eg., Bacteria, Cyanobacteria
These contain unicellular, eukaryotic organisms.
They exhibit an autotrophic or heterotrophic mode of nutrition.
They possess pseudopodia, cilia, flagella for locomotion.
For eg., amoeba, paramaecium
These are multicellular, eukaryotic organisms.
They exhibit a saprophytic mode of nutrition.
The cell wall is made up of chitin.
They live in a symbiotic relationship with blue-green algae.
For eg., Yeast, Aspergillus
These are multicellular, eukaryotic organisms.
The cell wall is made up of cellulose.
They prepare their own food by means of photosynthesis.
Kingdom Plantae is sub-divided into- Thallophyta, Bryophyta, Pteridophyta, Gymnosperms, Angiosperms.
For eg., Pines, ferns, Mango tree
These are multicellular, eukaryotic organisms without a cell wall.
They are heterotrophs.
The organisms in kingdom Animalia can be simple or complex.
They are genetically diverse.
They exhibit an organ-system level of organization.
It is sub-divided into different phyla such as Porifera, Coelenterata, Echinodermata, Chordata, etc.
For eg., Earthworms, Hydra, etc.
Read Diversity of Living Organisms Short Notes in Hindi
Step 1: Click on the Download PDF button. You will be taken to download page.
Step 2: On that topic page click on save button.
Step 3: After that click on that link than automatically the PDF will be downloaded. If it doesn’t start automatically than save it manually in the drive.
Support us by sharing these PDF among your friends so that they will also get benefit from these Short Notes PDF.
MCQ Link for NEET/JEE | |
JEE/NEET Physics MCQ | Click Here |
NEET/JEE Chemistry MCQ | Click Here |
NEET Biology MCQ | Click Here |
JEE Math’s MCQ | Click Here |
Notes PDF Link for NEET/JEE | |
Physics Notes PDF | Click Here |
Chemistry Notes PDF | Click Here |
Biology Notes PDF | Click Here |
Math’s Notes PDF | Click Here |
By Team Learning Mantras
TNPSC Civil Services Exam Notification: The Tamil Nadu Public Service Commission (TNPSC) has Announced Notification…
Best Books for RRB Technician Exam: The Railway Recruitment Board conducts the RRB Technician Exams.…
RRB Technician Result: The Railway Recruitment Board announces the RRB Technician Result within a month…
RRB Technician Admit Card: The Railway Technician Admit Card will be released by the Railway…
RRB Technician Salary: The RRB Technician Grade Pay is 1900 and Basic pay is 19900+HRA…
RRB Technician Study Materials: The Railway Recruitment Board conducts the RRB Technician Exams. Government of India,…
This website uses cookies.