CBSE Class 11 (Science) Living World — practice questions
110 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) Living World in the app →As per your syllabus, Biology Ch 1, BIOLOGY is defined as the science of what?As per your syllabus, the number of species currently known and described on Earth ranges between approximatelAs per your syllabus, what is the term for the process of standardising the naming of living organisms so thatAs per your syllabus, which international code governs the SCIENTIFIC NAMING of ANIMALS?As per your syllabus, who is credited with introducing the BINOMIAL NOMENCLATURE system used in biology?As per your syllabus, what is a TAXON?As per your syllabus, what is TAXONOMY?As per your syllabus, which Linnaeus publication had the title 'SYSTEMA NATURAE'?As per your syllabus, what is the LOWEST taxonomic category common to ALL organisms — plant or animal?As per your syllabus, the scientific name of POTATO is Solanum tuberosum. What does 'tuberosum' represent?As per your syllabus, the scientific name of LION is Panthera leo. What is its GENUS?As per your syllabus, what is the scientific name of HUMAN BEINGS?As per your syllabus, which animals are all members of the GENUS Panthera?As per your syllabus, the genus Solanum includes which plants?As per your syllabus, what is a FAMILY in taxonomic hierarchy?As per your syllabus, plants Solanum, Petunia, and Datura belong to which family?As per your syllabus, lion (Panthera) along with cats (Felis) are placed in which family?As per your syllabus, the family of DOGS is which?As per your syllabus, what TWO sets of features are used to characterise PLANT FAMILIES?As per your syllabus, what is an ORDER in taxonomy?As per your syllabus, the animal order CARNIVORA includes which families?As per your syllabus, the plant order POLYMONIALES includes which families?As per your syllabus, what is a CLASS in taxonomy?As per your syllabus, monkey, gorilla, gibbon are in order Primata. With order Carnivora (tiger, cat, dog), thAs per your syllabus, what TWO defining features unite the phylum CHORDATA?As per your syllabus, for PLANTS, what is the equivalent of 'phylum' called?As per your syllabus, what is the HIGHEST taxonomic category?As per your syllabus, MANGO (Mangifera indica) belongs to which family + division?A mountain gets bigger as material piles on its surface. Living things differ because their growth is:Increase in mass and increase in number of individuals are the twin marks of:A pine tree keeps growing all its life while a dog stops at a certain age. Growth by cell division is continuoA dead organism:A mould spreads across bread using millions of asexual:Yeast and hydra reproduce by:A cut Planaria regrows the missing part into a whole new worm. This is true:For an Amoeba, reproduction is the same thing as:Mules and sterile worker bees never reproduce. This shows reproduction is not:The sum total of all chemical reactions in the body is:Which of these shows metabolism?A metabolic reaction run in a test tube is:The defining feature of life forms is said to be:A sunflower turns towards light. This shows living things can:Seasonal breeders time their reproduction by day length, that is by the:The only organism said to be aware of itself is the:Properties of a tissue that its single cells lack arise from interactions. Such properties are:Dried, pressed plant specimens preserved on sheets are stored in a:Living plants grown and labelled for reference are kept in a:In a museum, insects are preserved in boxes after collecting, killing and:Wild animals kept under human care in near-natural conditions are in a:Each statement in a taxonomic key is called a:About how many species have been known and described so far?What is the standardised naming of living organisms called?Knowing exactly which organism a name is attached to is called what?The ICBN lays down the principles for naming which group?How many components does a scientific name have in binomial nomenclature?Who gave the two-word system of naming organisms used worldwide today?In Mangifera indica, which word is the specific epithet?In a biological name, which part begins with a small letter?How are the two words of a biological name shown when handwritten?In Mangifera indica Linn., what does the abbreviation Linn. tell us?Grouping things into categories using easily observable characters is called what?Which term is used for categories such as dogs, mammals, wheat and plants?Which of these is NOT a basic process of taxonomy?On what basis were the earliest classifications of organisms made?Systematics takes into account which kind of relationships among organisms?All taxonomic categories together constitute the taxonomic what?Which is the lowest taxonomic category in both plants and animals?Which category takes the place of phylum in plant classification?Which is the highest of the common taxonomic categories?A group of individuals with fundamental similarities is called what?Which specific epithet denotes the tiger in the genus Panthera?Potato and brinjal are placed in which genus?Which genus of cats is separate from Panthera?Which category is made up of closely related species?A group of related genera forms which taxonomic category?Panthera and Felis are placed together in which animal family?Dogs are placed in which family, separate from cats?Plant families are characterised on the basis of which features?Which category is an assemblage of families with a few similar characters?Which animal order includes the families Felidae and Canidae?Convolvulaceae and Solanaceae share an order mainly due to which characters?Fishes, amphibians, reptiles, birds and mammals share notochord and belong to which phylum?Going from species up to kingdom, how do shared characteristics change?Members of which taxon share the largest number of characteristics?Taxonomic studies help us know which resources and their diversity?What do scientific names ensure for each organism?Why do local names of organisms cause confusion?Which feature do all insects share as a group?In the word binomial, what does the prefix bi- mean?Linnaeus began consistently using one-word trivial names in which year?The zoological code takes which year as its starting point?Bacterial nomenclature restarted with which starting point?Bison bison has two identical parts. Which code permits such names?In Phlox drummondii, named after a botanist, how is drummondii written?After first mention, how may a genus name be shortened?What does the notation Canis spp. mean?Which symbol before a binomial may show the species is extinct?Passer domesticus (Linnaeus, 1758) has the authority in brackets. Why?In Amaranthus retroflexus L., what does the L. stand for?Names of ranks above genus, such as family, have how many parts?A zoological subspecies name, such as Anthus hodgsoni berezowskii, has how many parts?Which older naming system did binomial nomenclature replace?When a species moves to another genus, which part of its name usually stays?Who proposed the rank domain in 1990 to separate Archaea from Bacteria?In the eight-rank system, which rank sits above kingdom?The red fox, Vulpes vulpes, belongs to which family?Organisms with cell nuclei are grouped in which domain?What standard ending marks a plant family name, as in Rosaceae?Which German entomologist's work gave rise to cladistics?A group that includes an ancestor and all its descendants is called what?