The population of an insect species shows an explosive increase in numbers during the rainy season,followed by its disappearance at the end of the season. What does this show?

  • A
    The food plants mature and die at the end of the rainy season.
  • B
    Its population growth curve is of $J$-type.
  • C
    The population of its predators increases enormously.
  • D
    $S$-shaped or sigmoid growth of this insect.

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An asymptote in a logistic growth curve is obtained when:

If a population growing exponentially doubles in size in $3$ years,what is the intrinsic rate of increase $(r)$ of the population (in $\%$)? $(e = 2.71828)$

If a population growing exponentially doubles in size in $3$ years,what is the intrinsic rate of increase $(r)$ of the population?

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Zero growth of population is indicated by

Explain logistic growth.

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