NEET Zoology Organisms And Populations Class 12 Questions

Given below are two statements: Statement I: Fig fruit is a non-vegetarian fruit as it has enclosed fig wasps in it. Statement II: Fig wasp and fig tree exhibit mutual relationship as fig wasp completes its life cycle in fig fruit and fig fruit gets pollinated by fig wasp. In the light of the above statements, choose the most appropriate answer from the options given below:

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

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 competition, the inferior will be eliminated. This may be true if resources are limiting. In the light of the above statements, choose the correct answer from the options given below:

Match List I with List II.

Match List I with List II.

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

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

In a growing population of a country,

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

Natality refers to

Alexander Von Humboldt described for the first time

Asymptote in a logistic growth curve is obtained when

When does the growth rate of a population following the logistic model equal zero? The logistic model is given as dN/dt = rN(1–N/K)

Gause’s principle of competitive exclusion states that

The following graph depicts changes in two populations (X and Y) of herbivores in a grassy field. X possible reason for these changes is that