MCQ Chapter 4 Biology Class 11 Maharashtra Board Kingdom Animalia 1. Why are Aves’ bones hollow?To store calciumTo reduce body weightTo increase strengthTo aid respirationQuestion 1 of 202. Which feature in Aves increases buoyancy during flight?BeakAir sacsFeathersUropygial glandQuestion 2 of 203. Which class is defined by mammary glands?AmphibiaMammaliaReptiliaAvesQuestion 3 of 204. What type of dentition do Mammalia have?RadularHeterodontHomodontNo teethQuestion 4 of 205. Which mammal is oviparous?WhaleKangarooPlatypusHumanQuestion 5 of 206. Which phylum first exhibits a closed circulatory system?MolluscaArthropodaAnnelidaEchinodermataQuestion 6 of 207. Which animal has a venous heart?PigeonToadRohuCrocodileQuestion 7 of 208. Which phylum lacks a circulatory system?AnnelidaEchinodermataArthropodaMolluscaQuestion 8 of 209. What is the respiratory pigment in Mollusca?HemoglobinHaemocyaninHemerythrinChlorocruorinQuestion 9 of 2010. Which phylum exhibits a high power of regeneration?PlatyhelminthesAschelminthesCtenophoraArthropodaQuestion 10 of 2011. Which structure in Arthropoda is used for excretion?Flame cellsMalpighian tubulesNephridiaOsphradiaQuestion 11 of 2012. What is the body cavity of Annelida?HaemocoelAcoelomateCoelomatePseudocoelomateQuestion 12 of 2013. Which phylum has a ventral, solid, ganglionated nerve cord?MolluscaChordataArthropodaAnnelidaQuestion 13 of 2014. Which animal belongs to the minor phylum Ctenophora?HydraComb jellySea anemoneJellyfishQuestion 14 of 2015. What material forms the protective covering of crabs?SponginChitinCalcium carbonateSilicaQuestion 15 of 2016. Which phylum shows metamorphosis in some classes?ChordataMolluscaEchinodermataHemichordataQuestion 16 of 2017. What is the mode of nutrition in Cyclostomata?AutotrophicEctoparasiticHerbivorousSaprophyticQuestion 17 of 2018. Which feature is unique to Aves among vertebrates?Heterodont dentitionPneumatic bonesMammary glandsFour-chambered heartQuestion 18 of 2019. Which structure in Amphibia serves as a common chamber for excretory, digestive, and reproductive products?CoelomCloacaPharynxAtrioporeQuestion 19 of 2020. Which phylum includes animals with a tube feet system for locomotion?MolluscaArthropodaEchinodermataAnnelidaQuestion 20 of 20 Loading...
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