Organisms and Populations PYQs - Last 10 Years

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BiologyBotany2017-2026

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Practice 43 NEET Biology questions from Organisms and Populations. Use the year-wise and type-wise breakdown to prioritize recent PYQs, then continue into the question list below.

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Biology / Botany

2017-2026

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43

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2017-2026

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Last 10 Years Organisms and Populations Questions

Showing 43 of 43 filtered questions.

1Organisms And Populations

\(\text { Match List-I with List-II. }\)

List-I

List-II

A.

Both species are harmed

I.

Predation

B.

One species is harmed and the other is benefited

II.

Mutualism

C.

Both species are benefited

III.

Compet...

2Organisms And Populations

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason R.
Assertion A : The logistic growth model of populations is considered more realistic than the exponential growth model.
Reason R: Resource...

3Organisms And Populations

Consider a population of 10 million cells. Given the per-capita birth rate of 0.002 (per unit time) and the percapita death rate of 0.002 (per unit time), the expected number of cells after 10 generations is $\_\_\_\_$ .

4Organisms And Populations

Given below are two statements : one is labelled as Assertion A and the other is labelled as Reason $\mathbf{R}$.
Assertion A : Abingdon tortoise in Galapagos islands became extinct within a decade after goats were introduced.
Reason R: Goa...

5Organisms And Populations

Choose the correct statements regarding population interactions between two species.
A. In both parasitism and commensalism, only one species benefits and the other species is harmed.
B. Both species benefit in mutualism.
C. Both species be...

6Organisms And Populations

Which one of the following is an appropriate example of sexual deceit?

7Organisms And Populations

Which of the following equations depicts Verhulst-Pearl logistic population growth?

8Organisms And Populations

Which one of the following equations represents the Verhulst-Pearl Logistic Growth of population?

9Organisms And Populations

Epiphytes that are growing on a mango branch is an example of which of the following?

10Organisms And Populations

What do 'a' and 'b' represent in the following population growth curve?

11Organisms And Populations

Match List-I with List-II.

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.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;...

12Organisms And Populations

When will the population density increase, under special conditions?
When the number of :

13Organisms And Populations

Match List-I with List-II:

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.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...

14Organisms And Populations

Which one of the following factors will not affect the Hardy-Weinberg equilibrium?

15Organisms And Populations

Given below are two statements:
Statement I: Gause's competitive exclusion principle states that two closely related species competing for different resources cannot exist indefinitely.
Statement II: According to Gause's principle, during c...

16Organisms And Populations

The equation of Verhulst-Pearl logistic growth is \(\frac{\mathrm{dN}}{\mathrm{dt}}=\mathrm{rN}\left[\frac{\mathrm{K}-\mathrm{N}}{\mathrm{K}}\right]\).
From this equation, \(\mathrm{K}\) indicates:

17Organisms And Populations

If there are 250 snails in a pond, and within a year
their number increases to 2500 by reproduction.
What should be their birth rate per snail per year ?

18Organisms And Populations

Plants offer rewards to animals in the form of pollen and nectar and the animals facilitate the pollination process. This is an example of :

19Organisms And Populations

Match List I with List II.

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.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...

20Organisms And Populations

Match List I with List II.

.tg {border-collapse:collapse;border-spacing:0;}
.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}...

21Organisms And Populations

Given below are two statements:
Statement I : Gause’s ‘Competitive Exclusion Principle’ states that two closely related species competing for the same resources cannot co-exist indefinitely and competitively inferior one will be eliminated ...

22Organisms And Populations

If '8' Drosophila in a laboratory population of '80' died during a week, the death rate in the population is ___________ individuals per Drosophila per week.

23Organisms And Populations

While explaining interspecific interaction of population, (+) sign is assigned for beneficial interaction, (\(-\)) sign is assigned for detrimental interaction and (0) for neutral interaction. Which of the following interactions can be assi...

24Organisms And Populations

Which one of the following statements cannot be connected to Predation?

25Organisms And Populations

Match List-I with List-II
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.tg td{border-color:black;border-style:solid;border-width:1px;font-family:Arial, sans-serif;font-size:14px;
overflow:hidden;padding:10px 5px;word-break:normal;}
....

26Organisms And Populations

In the exponential growth equation Nt = N0ert, e represents

27Organisms And Populations

Amensalism can be represented as :

28Organisms And Populations

Inspite of interspecific competition in nature, which mechanism the competing species might have evolved for their survival?

29Organisms And Populations

Secondary metabolites such as nicotine,
strychnine and caffeine are produced by plants
for their

30Organisms And Populations

The process of growth is maximum during

31Organisms And Populations

Which of the following is not an attribute of a
population?

32Organisms And Populations

Match Column-I with Column –II.

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.tg td{border-style:solid;border-width:0px;font-family:Arial, sans-serif;font-size:14px;overflow:hidden;
padding:10px 5px;word-break:normal;}
.tg th{border...

33Organisms And Populations

The Earth summit held in Rio de Janeiro in 1992 was called :

34Organisms And Populations

Natality refers to

35Organisms And Populations

In a growing population of a country,

36Organisms And Populations

Pneumatophores occur in

37Organisms And Populations

Which one of the following plants shows a
very close relationship with a species of moth,
where none of the two can complete its life
cycle without the other?

38Organisms And Populations

Which one of the following population
interactions is widely used in medical science
for the production of antibiotics?

39Organisms And Populations

40Organisms And Populations

Asymptote in a logistic growth curve is obtained when :

41Organisms And Populations

Plants which produce characteristic pneumatophores and show vivipary belong to :

42Organisms And Populations

Mycorrhizae are the example of :

43Organisms And Populations

Presence of plants arranged into well defined vertical layers depending on their height can be seen best in :