NEET UG Organisms and Populations — practice questions
40 free MCQs with worked solutions. Tap any question for the answer + explanation, or practice them all in the app.
Practice NEET UG Organisms and Populations in the app →Population size is technically called population:Natality refers to the number of what during a given period?Immigration counts individuals of the same species that have done what?Which two processes increase population density?Plotting the age distribution of a population produces which structure?Which interaction benefits both of the species involved?In competition, what happens to both of the species involved?Commensalism is the interaction where one species benefits and the other is:In both parasitism and predation, how many species benefit?An exponential growth pattern gives which shape of curve over time?Logistic growth plotted against time produces which shape of curve?The limit a habitat places on the population of a species is called its:Cryptically-coloured insects and frogs use camouflage in order to avoid:Gause's competitive exclusion principle says two closely related species competing for the same resources cannIn brood parasitism, the parasitic bird does what with its eggs?Which species can pollinate a given fig species?The orchid growing on a mango branch is given as an example of which interaction?Competition is best defined in terms of a fall in the fitness of one species measured as its:Seasonal changes in temperature and precipitation create major biomes such as desert, rain forest and:An organism's tolerance range, resources used and functional role together make up its:Mango trees cannot grow in Canada, and snow leopards are absent from Kerala. The factor behind both is:Temperature matters to organisms because it affects the kinetics of:An animal that thrives across a wide range of temperatures is:Freshwater fish die in sea water mainly because of:Birds and mammals keep a constant body temperature. They are called:About what fraction of animals cannot maintain a constant internal environment?Very small animals are rare in polar regions because they:Thousands of Siberian birds winter every year at Keoladeo National Park in:Bears escape winter by going into:Some snails and fish avoid summer heat and drying by:The kangaroo rat meets all its water needs from:Desert plants sink their stomata in deep pits to reduce:Mammals from cold climates have shorter ears and limbs to:Seals in polar seas stay warm thanks to a thick layer of fat called:All the lotus plants in one pond form a:Natural selection operates at the level of the:A Paramecium doubling daily illustrates which growth when food and space are unlimited?Prickly pear cactus overran Australia until a cactus-feeding ___ was introduced.The Monarch butterfly is distasteful to birds because as a caterpillar it fed on a:On Scottish coasts the larger barnacle Balanus excludes the smaller: