Are you looking for Mcqs on Organisms and populations? If Yes then you are at right place. Here you will find Organisms and populations Mcq Questions and Answers, Trivia, Quiz, Interview MCQ & Organisms and populations Current Affairs for Competitive Exams like Neet exams, around 30% to 40% of Neet questions are asked from given Organisms and populations Mcqs. as you know Questions and Ansers on Organisms and populations is very important for Neet Exam. In this Organisms and populations MCQ section for Neet competition we are covering MCQS on Organisms and populations
Question : The principle of competitive exclusion states that two species cannot coexist in the same
A. biome.
B. ecological niche.
C. environmental habitat.
D. range.
Question : Mexico, which has a high population growth rate, has an age-structure diagram that has the shape of?
A. a triangle with the point at the bottom
B. a rectangle tapered at the top
C. a pyramid
D. an hourglass
Question : A population increases at first and then levels off at carrying capacity if it is
A. limited by density-dependent factors.
B. limited by density-independent factors.
C. an opportunistic species.
D. limited by both density-dependent or density-independent factors.
Question : Mammals can thrive in Antarctica as well as in the Sahara desert. This is because they are?
A. Conformers
B. Regulators
C. Partially regulators
D. Partially conformers
Question : The similarity of one organism to another for protection and hiding is called?
A. Mimicry
B. Predation
C. Adaptation
D. Camouflage
Question : What is unrestricted reproductive capacity in a population called
A. biotic potential
B. fertility
C. carrying capacity
D. birth rate
Question : According to an ecologist’s point of view, population structure does not include the
A. distribution of genotypes within a population.
B. population density.
C. spacing of population members.
D. biomass of the population.
Question : The lack of vegetation in deserts is caused by what biological factor?
A. Grazing by animals and goats
B. Low rainfall
C. Poor fertility of the soil
D. Native mankind
Question : Geometric representation of age structure is one of the characteristics of?
A. population
B. landscape
C. ecosystem
D. biotic community.
Question : Who coined the term ecology to describe the study of plants?
A. Haeckel
B. Odum
C. Warming
D. Dudgeon
Question : There would be an exponential increase in population
A. if it were limited only by density-dependent factors.
B. until it reaches carrying capacity.
C. if there were no limiting factors.
D. if it were a population with an equilibrial life history.
Question : What are the main factors affecting the foraging, reproductive, and migratory activities of organisms?
A. Light
B. Temperature
C. Water
D. Soil
Question : Chimpanzees have a relatively low birth rate. They take good care of their young, and most chimps live a long life. What would the chimp survivorship curve look like?
A. line that slopes gradually upward.
B. relatively flat line that drops steeply at the end.
C. line that drops steeply at first then flattens out.
D. line that slopes gradually downward.
Question : Keystone species should be protected because these
A. are capable of surviving in harsh environmental conditions.
B. indicate the presence of certain minerals in the soil.
C. have become rare due to overexploitation.
D. play an important role in supporting other species.
Question : In a laboratory population of 40 fruitflies, if 4 individuals died during a specified time interval (i.e., a week), what is the death rate in the population for that period?
A. 1
B. 0.1
C. 0.01
D. 0.4