CBSE Class 11 (Science) Animal Kingdom — practice questions
76 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice CBSE Class 11 (Science) Animal Kingdom in the app →Diploblastic animals have two embryonic germ layers — ectoderm and:All members of the kingdom Animalia are:Sponges show which level of body organisation?Coelenterates show which level of body organisation?The organ level of organisation begins with the phylum:Organs joined into functional systems make the level called:A digestive system with a single opening is called:A complete digestive system has openings numbering:In an open circulatory system the tissues are:In a closed circulatory system the blood runs through:Sponges are described as being mostly:A body halved identically by any plane through its axis shows:Which group shows radial symmetry?A body divided into identical halves in only one plane shows:Animals with only ectoderm and endoderm are called:Animals whose embryo also has mesoderm are called:The mesoderm lies in the embryo between the endoderm and the:A body cavity lined by mesoderm is called the:Animals possessing a true coelom are called:A cavity not lined by mesoderm is called a:Animals with no body cavity at all are called:A body divided into segments with repeated organs shows:The segmentation seen in the earthworm is called:In which group is the digestive system incomplete, with one opening serving as mouth and anus?When any plane through the central axis gives two identical halves, the symmetry is what?Triploblastic animals have a third germinal layer between ectoderm and endoderm. What is it?Aschelminthes are an example of which type of body cavity?What is metamerism, as seen in the earthworm?The notochord is derived from which germ layer and lies on which side?Animals that do not form a notochord are grouped as what?Which phylum comprises the sponges?In sponges, water leaves the central cavity through which opening?Which cells line the spongocoel and canals of a sponge?Which is the freshwater sponge among these?Euspongia is commonly known as which sponge?What are the stinging capsules inside cnidoblasts called?Which cnidarian body form is umbrella-shaped and free-swimming?Hydra and sea anemone exist in which body form?Obelia shows alternation of generations because it has what?Which of these is the Portuguese man-of-war?Meandrina is commonly called what?Which property is well marked in ctenophores?Why are Platyhelminthes called flatworms?Which cells aid osmoregulation and excretion in flatworms?Which flatworm is known for its high regeneration capacity?The liver fluke belongs to which genus?Aschelminthes are called roundworms because their body is what?Which animal is a filarial worm of phylum Aschelminthes?The name Annelida comes from the Latin annulus, meaning what?What do aquatic annelids like Nereis use for swimming?Among annelids, which one has separate sexes?Which is the largest phylum of Animalia?Which arthropod is called a living fossil?Which arthropod is the silkworm?Which phylum is the second largest in the animal kingdom?The file-like rasping organ in the mouth of molluscs is called what?Which of these is the squid?Which echinoderm is the sea cucumber?Hemichordates have a structure similar to a notochord. What is it called?The body of Balanoglossus is made of which three parts?Where is the heart located in chordates compared with non-chordates?The central nervous system of non-chordates is of what type?In Urochordata, where is the notochord present?Which statement is correct about chordates and vertebrates?Cyclostomes live as what on fishes?Lamprey and hagfish belong to which class?Which fishes have a cartilaginous endoskeleton and placoid scales?In male cartilaginous fishes, pelvic fins bear what?Which animal has electric organs among cartilaginous fishes?Bony fishes have gills covered by what?The class name Amphibia (amphi, bios) means what?What is the common chamber into which amphibian gut and urinogenital tracts open?Which reptiles have a four-chambered heart?Which of these is a poisonous snake genus?Which additional chambers does the digestive tract of birds have?Pteropus is the genus of which mammal?