Organisms and Populations — practice questions
56 curated practice questions from Organisms and Populations (Biology NEET, NTA Exams) — 28 easy, 13 medium, 15 hard. Every question includes the final answer free; step-by-step worked solutions with a free account.
- The age groups in a population are classified by
- Amensalism is a type of relationship between two species in which
- When does the growth rate of a population following the logistic model equal zero ? The logistic model is given as…
- If in a population more young individuals are present than adults. What will be the fate of the population after some…
- Between which among the following, the relationship is not an example of commensalism?
- The type of population where pre-reproductive animals occur in large numbers is:
- When will the population density increase, under special conditions? When the number of:
- What will be population of a country after 10 year. If current population is 30 million, and for each individual, 0.032…
- Study the four statements (1 - 4) given below and select the two correct ones out of them. (1) A lion eating a deer and…
- What do 'a' and 'b' represent in the following population growth curve?
- Increased IMR and decreased MMR in a population will [NCERT Pg. No. 43]
- Given below are two statements: Statement I : Two closely related species competing for same resources can exist…
- Consider the following statements (A)-(D) each with one or two blanks. Bears go into ___(1) ___during winter to…
- The force operating in an ecosystem which opposes the unchecked growth of population is:
- Consider the following four conditions (a - d) and select the correct pair of them as an adaptation to the environment…
- Density dependent factor that limits the population tend to:
- The logistic population growth is expressed by the equation:
- A biologist studied the population of rats in a barn. He found that the average natality was 250, average mortality…
- Small fish gets stuck near the bottom of a shark and derives its nutrition from it. This kind of association is called…
- Predation has same mechanism of interaction between two species as
- Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R). Assertion (A)…
- What makes a community stable? Resistant to invasion by alien species Resistant or resilient to natural disturbances…
- Given below are two statements: Statement I : Western ghats has more species of Amphibians in comparison with Eastern…
- The following graph depicts changes in two population (A and B) of herbivores in grasy field A possible reason for…
- Given below are two statements: Statement I : Gause's competitive exclusion principle states that two closely related…
- Which one of the following is categorized as a parasite in true sense?
- What will be effect of increased IMR and decreased MMR on a population
- Epiphytes that are growing on a mango branch is an example of which of the following?
- Given below are two statements. One is labelled as Assertion and the other is labelled as Reason. Assertion: The…
- A logistic growth curve depicting a population that is limited by a definite carrying capacity is shaped like the…
- Penicillium does not allow the growth of bacterium Staphylococcus . This sort of relationship is called:
- Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population?
- In which situation does the density of population decreases in a given habitat
- Given below are two statements: one is labeled as Assertion (A) and the other is labeled as Reason (R). Assertion (A) …
- If two species of wild grass invade a field and in the next season a single species remained, what may be the cause?
- Given below are two statements: Statement I : Resource partitioning has defied Gause's competitive exclusion principle…
- The study of human population statistically is known as [KCET 1994; MP PMT 1996]
- Given below are two statements: Statement I : Brood parasitism developed in birds during course of evolution. Statement…
- The inherent maximum capacity of an organism to reproduce or increase in number is called as:
- The functional aspect of a species with reference to the place of occurrence is called:
- Certain characteristic demographic features of developing countries are:
- Given below are two statements: Statement I : Orchids are space parasite on mango tree. Statement II : This type of…
- Carnivorous animals - lions and leopards, occupy the same niche but lions predate mostly larger animals and leopards…
- Two different species cannot live for long duration in the same niche or habitat. This law is:
- Given below are two statements: Statement I : According to Allen's rule, mammals in colder climates have shorter ears…
- Viscum album grows on trees. This is an example of:
- The equation of Verhulst-Pearl logistic growth is d N d t =r N [ K-N K ] From the equation, K indicates:
- Which one of the following is characteristic of a biological community?
- Which one of the following is a matching pair of certain organism (s) and the kind of association?
- Which one of the following is a matching pair of certain organisms (s) and the kind of association?
- If '+' sign is assigned to beneficial interaction '-' sign to detrimental and '0' sign to neutral interaction, then the…
- Deserts, grasslands, forests and tundra are the examples of:
- Gause's principle of competitive exclusion states that:
- Population of India has been continuously increasing because of Decrease in Infant Mortality Rate (IMR) Decrease in…
- Which of the following is not an attribute of a population?
- Given below are two statements: Statement I : Relation between Barnacle and whale is that of commensalism. Statement II…